Without doing anything 105 Men are born per 100 woman. With a population of ~1.338 billion you would expect up to 1000/205 * 5 = 32 million extra men. Men don'

Without doing anything 105 Men are born per 100 woman. With a population of ~1.338 billion you would expect up to 1000/205 * 5 = 32 million extra men. Men don't live as long as woman on average which tends to balance the genders. But, China's population demographics are also messed up from 1 child policy so it's a little more complex than you might think. http://en.wikipedia.org/wiki/Sex_ratio http://en.wikipedia.org/wiki/Sex_ratio PS: Also, women tend to have more marriages per lifetime than men which shifts things a fair amount.