Home / 8,227,147.20-12,340,720.80-6,970,545.60

Finding the Fourth Proportional to 8,227,147.20, 12,340,720.80 and 6,970,545.60

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Solution

The fourth proportional to 8,227,147.20, 12,340,720.80 and 6,970,545.60 is: 10,455,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227,147.20 : 12,340,720.80 = 6,970,545.60 : x
  2. Step 2: Convert to fraction form
    8,227,147.20/12,340,720.80 = 6,970,545.60/x
  3. Step 3: Cross multiply
    8,227,147.20x = 12,340,720.80 × 6,970,545.60
  4. Step 4: Simplify right side
    8,227,147.20x = 86,021,557,073,268.48
  5. Step 5: Solve for x
    x = 86,021,557,073,268.48/8,227,147.20
  6. Step 6: Final answer
    x = 10,455,818.40

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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.