Final answer:
China could expect approximately 2.83 x 10^4 visitors if their visitors were proportional to Chicago.
Step-by-step explanation:
To find out how many visitors China could expect if their visitors were proportional to Chicago, we can set up a proportion based on the ratio of the populations of the two places. The population of Chicago is 2.706 million and it receives 55 million visitors a year. Let's call the number of visitors China could expect 'x'. So, the proportion would be:
2.706 million / 55 million = 1.393 billion / x
Cross multiplying, we get:
2.706 million * x = 55 million * 1.393 billion
Simplifying the right side, we have:
2.706 million * x = 76.615635 billion
Dividing both sides by 2.706 million, we get:
x = 76.615635 billion / 2.706 million
x = 28,331.225
Rounded to two decimal places and written in scientific notation, China could expect approximately 2.83 x 10^4 visitors.