Home / 16,691,862.30-25,037,793.45-12,387,190.20

Finding the Fourth Proportional to 16,691,862.30, 25,037,793.45 and 12,387,190.20

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Solution

The fourth proportional to 16,691,862.30, 25,037,793.45 and 12,387,190.20 is: 18,580,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691,862.30 : 25,037,793.45 = 12,387,190.20 : x
  2. Step 2: Convert to fraction form
    16,691,862.30/25,037,793.45 = 12,387,190.20/x
  3. Step 3: Cross multiply
    16,691,862.30x = 25,037,793.45 × 12,387,190.20
  4. Step 4: Simplify right side
    16,691,862.30x = 310,147,909,653,464.19
  5. Step 5: Solve for x
    x = 310,147,909,653,464.19/16,691,862.30
  6. Step 6: Final answer
    x = 18,580,785.30

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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.