Home / 12,216,002.10-18,324,003.15-7,904,987.70

Finding the Fourth Proportional to 12,216,002.10, 18,324,003.15 and 7,904,987.70

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Solution

The fourth proportional to 12,216,002.10, 18,324,003.15 and 7,904,987.70 is: 11,857,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216,002.10 : 18,324,003.15 = 7,904,987.70 : x
  2. Step 2: Convert to fraction form
    12,216,002.10/18,324,003.15 = 7,904,987.70/x
  3. Step 3: Cross multiply
    12,216,002.10x = 18,324,003.15 × 7,904,987.70
  4. Step 4: Simplify right side
    12,216,002.10x = 144,851,019,515,511.25
  5. Step 5: Solve for x
    x = 144,851,019,515,511.25/12,216,002.10
  6. Step 6: Final answer
    x = 11,857,481.55

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1.5x scale

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.