Finding the Fourth Proportional to 481,539,125.90, 664,564,977.69 and 272,732,414.06
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Solution
The fourth proportional to 481,539,125.90, 664,564,977.69 and 272,732,414.06 is: 376,393,943.75
Step by Step Solution
- Step 1: Write the proportion equation
481,539,125.90 : 664,564,977.69 = 272,732,414.06 : x - Step 2: Convert to fraction form
481,539,125.90/664,564,977.69 = 272,732,414.06/x - Step 3: Cross multiply
481,539,125.90x = 664,564,977.69 × 272,732,414.06 - Step 4: Simplify right side
481,539,125.90x = 181,248,410,665,123,744 - Step 5: Solve for x
x = 181,248,410,665,123,744/481,539,125.90 - Step 6: Final answer
x = 376,393,943.75
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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.