Final answer:
The four largest countries in order from smallest to largest are the United States, China, Canada, and Russia.
Step-by-step explanation:
The four biggest countries in the world from smallest to largest are as follows:
- United States
- China
- Canada
- Russia
When ranking by land area, the United States is the fourth largest, followed by China as the third. Canada comes in at second, and Russia is the largest country in the world by far.