Home / 75,542,847.40-113,482,232.70-72,687,500.20

Finding the Fourth Proportional to 75,542,847.40, 113,482,232.70 and 72,687,500.20

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Solution

The fourth proportional to 75,542,847.40, 113,482,232.70 and 72,687,500.20 is: 109,192,863.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,542,847.40 : 113,482,232.70 = 72,687,500.20 : x
  2. Step 2: Convert to fraction form
    75,542,847.40/113,482,232.70 = 72,687,500.20/x
  3. Step 3: Cross multiply
    75,542,847.40x = 113,482,232.70 × 72,687,500.20
  4. Step 4: Simplify right side
    75,542,847.40x = 8,248,739,812,077,697
  5. Step 5: Solve for x
    x = 8,248,739,812,077,697/75,542,847.40
  6. Step 6: Final answer
    x = 109,192,863.33

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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.