Home / 72,503,860.60-108,755,790.90-43,838,414.20

Finding the Fourth Proportional to 72,503,860.60, 108,755,790.90 and 43,838,414.20

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Solution

The fourth proportional to 72,503,860.60, 108,755,790.90 and 43,838,414.20 is: 65,757,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,503,860.60 : 108,755,790.90 = 43,838,414.20 : x
  2. Step 2: Convert to fraction form
    72,503,860.60/108,755,790.90 = 43,838,414.20/x
  3. Step 3: Cross multiply
    72,503,860.60x = 108,755,790.90 × 43,838,414.20
  4. Step 4: Simplify right side
    72,503,860.60x = 4,767,681,408,122,791
  5. Step 5: Solve for x
    x = 4,767,681,408,122,791/72,503,860.60
  6. Step 6: Final answer
    x = 65,757,621.30

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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.