Home / 83,207,269.80-124,810,904.70-80,815,785.30

Finding the Fourth Proportional to 83,207,269.80, 124,810,904.70 and 80,815,785.30

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Solution

The fourth proportional to 83,207,269.80, 124,810,904.70 and 80,815,785.30 is: 121,223,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,207,269.80 : 124,810,904.70 = 80,815,785.30 : x
  2. Step 2: Convert to fraction form
    83,207,269.80/124,810,904.70 = 80,815,785.30/x
  3. Step 3: Cross multiply
    83,207,269.80x = 124,810,904.70 × 80,815,785.30
  4. Step 4: Simplify right side
    83,207,269.80x = 10,086,691,277,333,960
  5. Step 5: Solve for x
    x = 10,086,691,277,333,960/83,207,269.80
  6. Step 6: Final answer
    x = 121,223,677.95

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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.