Home / 72,217,352.17-108,258,636.17-28,498,472.70

Finding the Fourth Proportional to 72,217,352.17, 108,258,636.17 and 28,498,472.70

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Solution

The fourth proportional to 72,217,352.17, 108,258,636.17 and 28,498,472.70 is: 42,721,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,217,352.17 : 108,258,636.17 = 28,498,472.70 : x
  2. Step 2: Convert to fraction form
    72,217,352.17/108,258,636.17 = 28,498,472.70/x
  3. Step 3: Cross multiply
    72,217,352.17x = 108,258,636.17 × 28,498,472.70
  4. Step 4: Simplify right side
    72,217,352.17x = 3,085,205,787,429,977.50
  5. Step 5: Solve for x
    x = 3,085,205,787,429,977.50/72,217,352.17
  6. Step 6: Final answer
    x = 42,721,114.73

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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.