Home / 12,305,997.20-18,458,995.80-7,267,149.20

Finding the Fourth Proportional to 12,305,997.20, 18,458,995.80 and 7,267,149.20

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Solution

The fourth proportional to 12,305,997.20, 18,458,995.80 and 7,267,149.20 is: 10,900,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305,997.20 : 18,458,995.80 = 7,267,149.20 : x
  2. Step 2: Convert to fraction form
    12,305,997.20/18,458,995.80 = 7,267,149.20/x
  3. Step 3: Cross multiply
    12,305,997.20x = 18,458,995.80 × 7,267,149.20
  4. Step 4: Simplify right side
    12,305,997.20x = 134,144,276,560,773.38
  5. Step 5: Solve for x
    x = 134,144,276,560,773.38/12,305,997.20
  6. Step 6: Final answer
    x = 10,900,723.80

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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.