Katie Ledecky became the United States’ most decorated female Olympian and France’s Leon Marchand reached yet another final on a boisterous night of swimming in Paris.

The USA – with Ledecky swimming the third leg – claimed silver in the women’s 4x200m relay in seven minutes 40.86 seconds at La Defense Arena.

It takes Ledecky’s Olympic tally to 13 medals – eight golds, four silvers and one bronze.

The 27-year-old retained her 1500m freestyle title with impressive ease on Wednesday.

She also took 400m freestyle bronze and on Saturday will bid to secure yet another gold in the 800m freestyle.

Australia set an Olympic record to take gold in 7:38.08, with China third with 7:42.34.

Great Britain’s women finished fifth, with the quartet of Freya Colbert, Abbie Wood, Freya Anderson and Lucy Hope clocking 7:48.23.

Earlier, Marchand – perhaps unsurprisingly – was the fastest qualifier for Friday’s 200m individual medley final, finishing in 1:56.31 after being given another huge reception by the crowd.

Marchand made history on Wednesday with two golds in one night, winning the 200m butterfly title and the 200m backstroke title in the space of two hours.

He also won gold in the 400m medley.

Tom Dean, the defending champion in the 200m individual medley, qualified for Friday’s final in 1:56.92 – but British team-mate Duncan Scott was quicker with 1:56.49.

“It felt all right,” Scott told BBC Sport.

“I probably wanted to be out a bit quicker and work the backstroke a bit more.

“I should have an alright lane for tomorrow night so it should be a good one. I’m excited.”

Elsewhere, Britain’s Ben Proud was the fastest qualifier for Friday’s men’s 50m freestyle final.

Proud clocked 21.38secs to give himself an excellent chance of a first Olympic gold.

The 29-year-old has won world, European and Commonwealth gold in the discipline. but has yet to secure an Olympic medal.

“I have never been in this position – it is very exciting,” Proud told BBC TV.

“It’s funny, not everything went right, but it is about finding that balance of what you can do well and what you can do better.”

Britain’s Honey Osrin was the third-fastest qualifier for the women’s 200m backstroke final in 2:07.84, with Katie Shanahan also reaching the showpiece in 2:08.52.

Britain’s Laura Stephens finished eighth in the women’s 200m butterfly in 2:08.82 – the first final of the night – as Canadian 17-year-old Summer McIntosh set an Olympic record.

McIntosh registered 2:03.03 to claim gold and clinch her third medal in Paris, after triumphing in the women’s 400m medley and taking silver in the 400m freestyle.