Finding the Fourth Proportional to 638,234,141.24, 955,387,674.36 and 416,427,877.71
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Solution
The fourth proportional to 638,234,141.24, 955,387,674.36 and 416,427,877.71 is: 623,360,669.56
Step by Step Solution
- Step 1: Write the proportion equation
638,234,141.24 : 955,387,674.36 = 416,427,877.71 : x - Step 2: Convert to fraction form
638,234,141.24/955,387,674.36 = 416,427,877.71/x - Step 3: Cross multiply
638,234,141.24x = 955,387,674.36 × 416,427,877.71 - Step 4: Simplify right side
638,234,141.24x = 397,850,061,624,027,392 - Step 5: Solve for x
x = 397,850,061,624,027,392/638,234,141.24 - Step 6: Final answer
x = 623,360,669.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.