Home / 18,691,880.10-28,037,820.15-8,614,184.10

Finding the Fourth Proportional to 18,691,880.10, 28,037,820.15 and 8,614,184.10

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Solution

The fourth proportional to 18,691,880.10, 28,037,820.15 and 8,614,184.10 is: 12,921,276.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,880.10 : 28,037,820.15 = 8,614,184.10 : x
  2. Step 2: Convert to fraction form
    18,691,880.10/28,037,820.15 = 8,614,184.10/x
  3. Step 3: Cross multiply
    18,691,880.10x = 28,037,820.15 × 8,614,184.10
  4. Step 4: Simplify right side
    18,691,880.10x = 241,522,944,534,789.59
  5. Step 5: Solve for x
    x = 241,522,944,534,789.59/18,691,880.10
  6. Step 6: Final answer
    x = 12,921,276.15

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Double scale
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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.