Home / 12,659,327,998.20-18,988,991,997.30-8,741,119,793.40

Finding the Fourth Proportional to 12,659,327,998.20, 18,988,991,997.30 and 8,741,119,793.40

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Solution

The fourth proportional to 12,659,327,998.20, 18,988,991,997.30 and 8,741,119,793.40 is: 13,111,679,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,327,998.20 : 18,988,991,997.30 = 8,741,119,793.40 : x
  2. Step 2: Convert to fraction form
    12,659,327,998.20/18,988,991,997.30 = 8,741,119,793.40/x
  3. Step 3: Cross multiply
    12,659,327,998.20x = 18,988,991,997.30 × 8,741,119,793.40
  4. Step 4: Simplify right side
    12,659,327,998.20x = 165,985,053,804,313,214,976
  5. Step 5: Solve for x
    x = 165,985,053,804,313,214,976/12,659,327,998.20
  6. Step 6: Final answer
    x = 13,111,679,690.10

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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.