Home / 8,261,998.20-12,392,997.30-7,702,126.20

Finding the Fourth Proportional to 8,261,998.20, 12,392,997.30 and 7,702,126.20

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Solution

The fourth proportional to 8,261,998.20, 12,392,997.30 and 7,702,126.20 is: 11,553,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261,998.20 : 12,392,997.30 = 7,702,126.20 : x
  2. Step 2: Convert to fraction form
    8,261,998.20/12,392,997.30 = 7,702,126.20/x
  3. Step 3: Cross multiply
    8,261,998.20x = 12,392,997.30 × 7,702,126.20
  4. Step 4: Simplify right side
    8,261,998.20x = 95,452,429,200,859.27
  5. Step 5: Solve for x
    x = 95,452,429,200,859.27/8,261,998.20
  6. Step 6: Final answer
    x = 11,553,189.30

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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.