Home / 86,349,286.31-129,487,060.76-49,982,778.68

Finding the Fourth Proportional to 86,349,286.31, 129,487,060.76 and 49,982,778.68

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Solution

The fourth proportional to 86,349,286.31, 129,487,060.76 and 49,982,778.68 is: 74,952,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,349,286.31 : 129,487,060.76 = 49,982,778.68 : x
  2. Step 2: Convert to fraction form
    86,349,286.31/129,487,060.76 = 49,982,778.68/x
  3. Step 3: Cross multiply
    86,349,286.31x = 129,487,060.76 × 49,982,778.68
  4. Step 4: Simplify right side
    86,349,286.31x = 6,472,123,098,993,443
  5. Step 5: Solve for x
    x = 6,472,123,098,993,443/86,349,286.31
  6. Step 6: Final answer
    x = 74,952,826.78

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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.