Home / 391,810,601.28-587,715,815.25-142,834,524.56

Finding the Fourth Proportional to 391,810,601.28, 587,715,815.25 and 142,834,524.56

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Solution

The fourth proportional to 391,810,601.28, 587,715,815.25 and 142,834,524.56 is: 214,251,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,810,601.28 : 587,715,815.25 = 142,834,524.56 : x
  2. Step 2: Convert to fraction form
    391,810,601.28/587,715,815.25 = 142,834,524.56/x
  3. Step 3: Cross multiply
    391,810,601.28x = 587,715,815.25 × 142,834,524.56
  4. Step 4: Simplify right side
    391,810,601.28x = 83,946,109,044,687,968
  5. Step 5: Solve for x
    x = 83,946,109,044,687,968/391,810,601.28
  6. Step 6: Final answer
    x = 214,251,755.24

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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.