Home / 10,080,320.10-15,120,480.15-3,690,780.90

Finding the Fourth Proportional to 10,080,320.10, 15,120,480.15 and 3,690,780.90

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Solution

The fourth proportional to 10,080,320.10, 15,120,480.15 and 3,690,780.90 is: 5,536,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080,320.10 : 15,120,480.15 = 3,690,780.90 : x
  2. Step 2: Convert to fraction form
    10,080,320.10/15,120,480.15 = 3,690,780.90/x
  3. Step 3: Cross multiply
    10,080,320.10x = 15,120,480.15 × 3,690,780.90
  4. Step 4: Simplify right side
    10,080,320.10x = 55,806,379,336,449.13
  5. Step 5: Solve for x
    x = 55,806,379,336,449.13/10,080,320.10
  6. Step 6: Final answer
    x = 5,536,171.35

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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.