Finding the Fourth Proportional to 371,534,949.31, 512,687,905.68 and 218,747,348.41
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Solution
The fourth proportional to 371,534,949.31, 512,687,905.68 and 218,747,348.41 is: 301,853,486.83
Step by Step Solution
- Step 1: Write the proportion equation
371,534,949.31 : 512,687,905.68 = 218,747,348.41 : x - Step 2: Convert to fraction form
371,534,949.31/512,687,905.68 = 218,747,348.41/x - Step 3: Cross multiply
371,534,949.31x = 512,687,905.68 × 218,747,348.41 - Step 4: Simplify right side
371,534,949.31x = 112,149,119,929,376,176 - Step 5: Solve for x
x = 112,149,119,929,376,176/371,534,949.31 - Step 6: Final answer
x = 301,853,486.83
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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.