Finding the Fourth Proportional to 638,234,072.62, 955,387,572.54 and 416,427,810.10
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Solution
The fourth proportional to 638,234,072.62, 955,387,572.54 and 416,427,810.10 is: 623,360,568.95
Step by Step Solution
- Step 1: Write the proportion equation
638,234,072.62 : 955,387,572.54 = 416,427,810.10 : x - Step 2: Convert to fraction form
638,234,072.62/955,387,572.54 = 416,427,810.10/x - Step 3: Cross multiply
638,234,072.62x = 955,387,572.54 × 416,427,810.10 - Step 4: Simplify right side
638,234,072.62x = 397,849,954,629,587,072 - Step 5: Solve for x
x = 397,849,954,629,587,072/638,234,072.62 - Step 6: Final answer
x = 623,360,568.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.