Home / 87,219,446.10-130,687,451.55-72,764,250.90

Finding the Fourth Proportional to 87,219,446.10, 130,687,451.55 and 72,764,250.90

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Solution

The fourth proportional to 87,219,446.10, 130,687,451.55 and 72,764,250.90 is: 109,028,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,219,446.10 : 130,687,451.55 = 72,764,250.90 : x
  2. Step 2: Convert to fraction form
    87,219,446.10/130,687,451.55 = 72,764,250.90/x
  3. Step 3: Cross multiply
    87,219,446.10x = 130,687,451.55 × 72,764,250.90
  4. Step 4: Simplify right side
    87,219,446.10x = 9,509,374,514,065,794
  5. Step 5: Solve for x
    x = 9,509,374,514,065,794/87,219,446.10
  6. Step 6: Final answer
    x = 109,028,146.12

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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.