Home / 18,443,780.40-27,665,670.60-5,664,920.70

Finding the Fourth Proportional to 18,443,780.40, 27,665,670.60 and 5,664,920.70

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Solution

The fourth proportional to 18,443,780.40, 27,665,670.60 and 5,664,920.70 is: 8,497,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,780.40 : 27,665,670.60 = 5,664,920.70 : x
  2. Step 2: Convert to fraction form
    18,443,780.40/27,665,670.60 = 5,664,920.70/x
  3. Step 3: Cross multiply
    18,443,780.40x = 27,665,670.60 × 5,664,920.70
  4. Step 4: Simplify right side
    18,443,780.40x = 156,723,830,061,321.44
  5. Step 5: Solve for x
    x = 156,723,830,061,321.44/18,443,780.40
  6. Step 6: Final answer
    x = 8,497,381.05

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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.