Home / 8,305,387.20-12,458,080.80-8,193,412.80

Finding the Fourth Proportional to 8,305,387.20, 12,458,080.80 and 8,193,412.80

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Solution

The fourth proportional to 8,305,387.20, 12,458,080.80 and 8,193,412.80 is: 12,290,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,387.20 : 12,458,080.80 = 8,193,412.80 : x
  2. Step 2: Convert to fraction form
    8,305,387.20/12,458,080.80 = 8,193,412.80/x
  3. Step 3: Cross multiply
    8,305,387.20x = 12,458,080.80 × 8,193,412.80
  4. Step 4: Simplify right side
    8,305,387.20x = 102,074,198,690,154.25
  5. Step 5: Solve for x
    x = 102,074,198,690,154.25/8,305,387.20
  6. Step 6: Final answer
    x = 12,290,119.20

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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.