Home / 119,229,129.82-178,661,155.56-80,223,103.95

Finding the Fourth Proportional to 119,229,129.82, 178,661,155.56 and 80,223,103.95

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Solution

The fourth proportional to 119,229,129.82, 178,661,155.56 and 80,223,103.95 is: 120,211,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,229,129.82 : 178,661,155.56 = 80,223,103.95 : x
  2. Step 2: Convert to fraction form
    119,229,129.82/178,661,155.56 = 80,223,103.95/x
  3. Step 3: Cross multiply
    119,229,129.82x = 178,661,155.56 × 80,223,103.95
  4. Step 4: Simplify right side
    119,229,129.82x = 14,332,752,454,317,002
  5. Step 5: Solve for x
    x = 14,332,752,454,317,002/119,229,129.82
  6. Step 6: Final answer
    x = 120,211,834.78

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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.