Prime Minister David Cameron has finished his two day tour, designed to promote British business in Brazil, by flying to the capital to meet with President Dilma Rousseff.

He has viewed plans for the proposed Olympic Park, which will be constructed to a masterplan drawn up by London-based Aecom, who performed a similar role for the 2012 Games.

The British PM has acknowledged that the UK is "under performing" on the business front, achieving just 1.5 per cent of imports into the country compared to Germany's 6.4 per cent.

Brazil is now the sixth largest economy in the world and Mr Cameron has welcomed the signing of deals worth upwards of £100 million for the UK.

The Prime Minister is expected to talk to Ms Rousseff about Brazil's growing energy sector, which Mr Cameron believes provides an opportunity to export UK expertise and skills gained in 40 years of drilling in the North Sea.

Mr Cameron has said his message to Ms Rousseff would be to resist protectionism and support free trade.

"I'm doing everything I can to boost trade, like bringing to Brazil the largest ever British business delegation so that we can work together to generate prosperity for Brazil and British citizens alike," he said.

Since coming to office in 2010, Mr Cameron has made boosting exports a key foreign policy priority. Brazil is the last of the four BRIC economies he has visited, after Russia, India and China.