Home / 12,358,886.20-18,538,329.30-8,327,807.80

Finding the Fourth Proportional to 12,358,886.20, 18,538,329.30 and 8,327,807.80

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Solution

The fourth proportional to 12,358,886.20, 18,538,329.30 and 8,327,807.80 is: 12,491,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,886.20 : 18,538,329.30 = 8,327,807.80 : x
  2. Step 2: Convert to fraction form
    12,358,886.20/18,538,329.30 = 8,327,807.80/x
  3. Step 3: Cross multiply
    12,358,886.20x = 18,538,329.30 × 8,327,807.80
  4. Step 4: Simplify right side
    12,358,886.20x = 154,383,643,343,508.53
  5. Step 5: Solve for x
    x = 154,383,643,343,508.53/12,358,886.20
  6. Step 6: Final answer
    x = 12,491,711.70

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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.