Home / 86,349,288.31-129,487,063.75-49,982,780.68

Finding the Fourth Proportional to 86,349,288.31, 129,487,063.75 and 49,982,780.68

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Solution

The fourth proportional to 86,349,288.31, 129,487,063.75 and 49,982,780.68 is: 74,952,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,349,288.31 : 129,487,063.75 = 49,982,780.68 : x
  2. Step 2: Convert to fraction form
    86,349,288.31/129,487,063.75 = 49,982,780.68/x
  3. Step 3: Cross multiply
    86,349,288.31x = 129,487,063.75 × 49,982,780.68
  4. Step 4: Simplify right side
    86,349,288.31x = 6,472,123,508,313,428
  5. Step 5: Solve for x
    x = 6,472,123,508,313,428/86,349,288.31
  6. Step 6: Final answer
    x = 74,952,829.78

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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.