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Finding the Fourth Proportional to 481,539,126.65, 664,564,978.73 and 272,732,414.81

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Solution

The fourth proportional to 481,539,126.65, 664,564,978.73 and 272,732,414.81 is: 376,393,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,539,126.65 : 664,564,978.73 = 272,732,414.81 : x
  2. Step 2: Convert to fraction form
    481,539,126.65/664,564,978.73 = 272,732,414.81/x
  3. Step 3: Cross multiply
    481,539,126.65x = 664,564,978.73 × 272,732,414.81
  4. Step 4: Simplify right side
    481,539,126.65x = 181,248,411,445,825,536
  5. Step 5: Solve for x
    x = 181,248,411,445,825,536/481,539,126.65
  6. Step 6: Final answer
    x = 376,393,944.78

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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.