Home / 78,732,120.20-118,098,180.30-58,324,785.80

Finding the Fourth Proportional to 78,732,120.20, 118,098,180.30 and 58,324,785.80

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Solution

The fourth proportional to 78,732,120.20, 118,098,180.30 and 58,324,785.80 is: 87,487,178.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,120.20 : 118,098,180.30 = 58,324,785.80 : x
  2. Step 2: Convert to fraction form
    78,732,120.20/118,098,180.30 = 58,324,785.80/x
  3. Step 3: Cross multiply
    78,732,120.20x = 118,098,180.30 × 58,324,785.80
  4. Step 4: Simplify right side
    78,732,120.20x = 6,888,051,069,367,279
  5. Step 5: Solve for x
    x = 6,888,051,069,367,279/78,732,120.20
  6. Step 6: Final answer
    x = 87,487,178.70

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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.