Home / 132,815,429.25-198,814,535.10-86,657,909.73

Finding the Fourth Proportional to 132,815,429.25, 198,814,535.10 and 86,657,909.73

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Solution

The fourth proportional to 132,815,429.25, 198,814,535.10 and 86,657,909.73 is: 129,720,260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,815,429.25 : 198,814,535.10 = 86,657,909.73 : x
  2. Step 2: Convert to fraction form
    132,815,429.25/198,814,535.10 = 86,657,909.73/x
  3. Step 3: Cross multiply
    132,815,429.25x = 198,814,535.10 × 86,657,909.73
  4. Step 4: Simplify right side
    132,815,429.25x = 17,228,852,035,707,716
  5. Step 5: Solve for x
    x = 17,228,852,035,707,716/132,815,429.25
  6. Step 6: Final answer
    x = 129,720,260.16

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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.