Home / 12,251,279.60-18,376,919.40-8,220,201.20

Finding the Fourth Proportional to 12,251,279.60, 18,376,919.40 and 8,220,201.20

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Solution

The fourth proportional to 12,251,279.60, 18,376,919.40 and 8,220,201.20 is: 12,330,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,279.60 : 18,376,919.40 = 8,220,201.20 : x
  2. Step 2: Convert to fraction form
    12,251,279.60/18,376,919.40 = 8,220,201.20/x
  3. Step 3: Cross multiply
    12,251,279.60x = 18,376,919.40 × 8,220,201.20
  4. Step 4: Simplify right side
    12,251,279.60x = 151,061,974,904,183.28
  5. Step 5: Solve for x
    x = 151,061,974,904,183.28/12,251,279.60
  6. Step 6: Final answer
    x = 12,330,301.80

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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.