Home / 8,139,626.20-12,209,439.30-3,888,098.20

Finding the Fourth Proportional to 8,139,626.20, 12,209,439.30 and 3,888,098.20

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Solution

The fourth proportional to 8,139,626.20, 12,209,439.30 and 3,888,098.20 is: 5,832,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139,626.20 : 12,209,439.30 = 3,888,098.20 : x
  2. Step 2: Convert to fraction form
    8,139,626.20/12,209,439.30 = 3,888,098.20/x
  3. Step 3: Cross multiply
    8,139,626.20x = 12,209,439.30 × 3,888,098.20
  4. Step 4: Simplify right side
    8,139,626.20x = 47,471,498,965,339.27
  5. Step 5: Solve for x
    x = 47,471,498,965,339.27/8,139,626.20
  6. Step 6: Final answer
    x = 5,832,147.30

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Double scale
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Similar ratio
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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.