Home / 75,542,862.40-113,482,255.20-72,687,515.20

Finding the Fourth Proportional to 75,542,862.40, 113,482,255.20 and 72,687,515.20

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Solution

The fourth proportional to 75,542,862.40, 113,482,255.20 and 72,687,515.20 is: 109,192,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,542,862.40 : 113,482,255.20 = 72,687,515.20 : x
  2. Step 2: Convert to fraction form
    75,542,862.40/113,482,255.20 = 72,687,515.20/x
  3. Step 3: Cross multiply
    75,542,862.40x = 113,482,255.20 × 72,687,515.20
  4. Step 4: Simplify right side
    75,542,862.40x = 8,248,743,149,780,280
  5. Step 5: Solve for x
    x = 8,248,743,149,780,280/75,542,862.40
  6. Step 6: Final answer
    x = 109,192,885.84

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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.