The world's 4th largest economies

China

China, the Asian giant, is the world's fourth largest economy with a GDP of $3.281 trillion; but in purchasing power parity terms it ranks second at $7.055 trillion.

It is the world's fastest growing major economy and its giant strides have taken the world by a storm. Economists predict that over the next few decades, it could topple the US as the world's largest economy.

China's per capita income, however, is still low at $2,630 per year.