Home / 187,836,229.71-281,755,842.66-77,143,381.65

Finding the Fourth Proportional to 187,836,229.71, 281,755,842.66 and 77,143,381.65

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Solution

The fourth proportional to 187,836,229.71, 281,755,842.66 and 77,143,381.65 is: 115,715,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,836,229.71 : 281,755,842.66 = 77,143,381.65 : x
  2. Step 2: Convert to fraction form
    187,836,229.71/281,755,842.66 = 77,143,381.65/x
  3. Step 3: Cross multiply
    187,836,229.71x = 281,755,842.66 × 77,143,381.65
  4. Step 4: Simplify right side
    187,836,229.71x = 21,735,598,502,437,736
  5. Step 5: Solve for x
    x = 21,735,598,502,437,736/187,836,229.71
  6. Step 6: Final answer
    x = 115,715,687.73

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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.