The GDP of China, the USA, India, and Pakistan are as follows:
China: The GDP of China was approximately $18.7 trillion in 2021
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USA: The GDP of the United States was around $22.7 trillion in 2021
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India: The GDP of India was about $3.4 trillion in 2022
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Pakistan: The GDP of Pakistan was roughly $296 billion in 2021

Apple market value is 3 trillion dollars
Google and Microsoft 2 trillion
Amazon under 1 trillion