Home / 87,043,591.68-120,121,146.90-49,873,126.38

Finding the Fourth Proportional to 87,043,591.68, 120,121,146.90 and 49,873,126.38

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Solution

The fourth proportional to 87,043,591.68, 120,121,146.90 and 49,873,126.38 is: 68,825,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,043,591.68 : 120,121,146.90 = 49,873,126.38 : x
  2. Step 2: Convert to fraction form
    87,043,591.68/120,121,146.90 = 49,873,126.38/x
  3. Step 3: Cross multiply
    87,043,591.68x = 120,121,146.90 × 49,873,126.38
  4. Step 4: Simplify right side
    87,043,591.68x = 5,990,817,140,254,246
  5. Step 5: Solve for x
    x = 5,990,817,140,254,246/87,043,591.68
  6. Step 6: Final answer
    x = 68,825,481.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.