Home / 8,161,212.60-12,241,818.90-7,279,414.20

Finding the Fourth Proportional to 8,161,212.60, 12,241,818.90 and 7,279,414.20

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Solution

The fourth proportional to 8,161,212.60, 12,241,818.90 and 7,279,414.20 is: 10,919,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161,212.60 : 12,241,818.90 = 7,279,414.20 : x
  2. Step 2: Convert to fraction form
    8,161,212.60/12,241,818.90 = 7,279,414.20/x
  3. Step 3: Cross multiply
    8,161,212.60x = 12,241,818.90 × 7,279,414.20
  4. Step 4: Simplify right side
    8,161,212.60x = 89,113,270,334,488.39
  5. Step 5: Solve for x
    x = 89,113,270,334,488.39/8,161,212.60
  6. Step 6: Final answer
    x = 10,919,121.30

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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.