Finding the Fourth Proportional to 5,278,693,290.44, 7,284,601,515.24 and 2,899,985,320.98
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Solution
The fourth proportional to 5,278,693,290.44, 7,284,601,515.24 and 2,899,985,320.98 is: 4,001,982,365.91
Step by Step Solution
- Step 1: Write the proportion equation
5,278,693,290.44 : 7,284,601,515.24 = 2,899,985,320.98 : x - Step 2: Convert to fraction form
5,278,693,290.44/7,284,601,515.24 = 2,899,985,320.98/x - Step 3: Cross multiply
5,278,693,290.44x = 7,284,601,515.24 × 2,899,985,320.98 - Step 4: Simplify right side
5,278,693,290.44x = 21,125,237,463,384,666,112 - Step 5: Solve for x
x = 21,125,237,463,384,666,112/5,278,693,290.44 - Step 6: Final answer
x = 4,001,982,365.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.