Home / 82,373,499.20-123,560,248.80-67,067,998.40

Finding the Fourth Proportional to 82,373,499.20, 123,560,248.80 and 67,067,998.40

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Solution

The fourth proportional to 82,373,499.20, 123,560,248.80 and 67,067,998.40 is: 100,601,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,373,499.20 : 123,560,248.80 = 67,067,998.40 : x
  2. Step 2: Convert to fraction form
    82,373,499.20/123,560,248.80 = 67,067,998.40/x
  3. Step 3: Cross multiply
    82,373,499.20x = 123,560,248.80 × 67,067,998.40
  4. Step 4: Simplify right side
    82,373,499.20x = 8,286,938,568,822,002
  5. Step 5: Solve for x
    x = 8,286,938,568,822,002/82,373,499.20
  6. Step 6: Final answer
    x = 100,601,997.60

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Similar ratio
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1.5x scale

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.