Home / 13,479,314.90-20,218,972.35-8,377,481.30

Finding the Fourth Proportional to 13,479,314.90, 20,218,972.35 and 8,377,481.30

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Solution

The fourth proportional to 13,479,314.90, 20,218,972.35 and 8,377,481.30 is: 12,566,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,314.90 : 20,218,972.35 = 8,377,481.30 : x
  2. Step 2: Convert to fraction form
    13,479,314.90/20,218,972.35 = 8,377,481.30/x
  3. Step 3: Cross multiply
    13,479,314.90x = 20,218,972.35 × 8,377,481.30
  4. Step 4: Simplify right side
    13,479,314.90x = 169,384,062,767,342.06
  5. Step 5: Solve for x
    x = 169,384,062,767,342.06/13,479,314.90
  6. Step 6: Final answer
    x = 12,566,221.95

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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.