Home / 87,120,219.70-130,680,329.55-82,868,691.70

Finding the Fourth Proportional to 87,120,219.70, 130,680,329.55 and 82,868,691.70

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Solution

The fourth proportional to 87,120,219.70, 130,680,329.55 and 82,868,691.70 is: 124,303,037.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,219.70 : 130,680,329.55 = 82,868,691.70 : x
  2. Step 2: Convert to fraction form
    87,120,219.70/130,680,329.55 = 82,868,691.70/x
  3. Step 3: Cross multiply
    87,120,219.70x = 130,680,329.55 × 82,868,691.70
  4. Step 4: Simplify right side
    87,120,219.70x = 10,829,307,940,733,350
  5. Step 5: Solve for x
    x = 10,829,307,940,733,350/87,120,219.70
  6. Step 6: Final answer
    x = 124,303,037.55

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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.