Home / 67,260,080.30-100,890,120.45-18,745,421.90

Finding the Fourth Proportional to 67,260,080.30, 100,890,120.45 and 18,745,421.90

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Solution

The fourth proportional to 67,260,080.30, 100,890,120.45 and 18,745,421.90 is: 28,118,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,260,080.30 : 100,890,120.45 = 18,745,421.90 : x
  2. Step 2: Convert to fraction form
    67,260,080.30/100,890,120.45 = 18,745,421.90/x
  3. Step 3: Cross multiply
    67,260,080.30x = 100,890,120.45 × 18,745,421.90
  4. Step 4: Simplify right side
    67,260,080.30x = 1,891,227,873,377,067.75
  5. Step 5: Solve for x
    x = 1,891,227,873,377,067.75/67,260,080.30
  6. Step 6: Final answer
    x = 28,118,132.85

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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.