Home / 166,853,998.20-250,280,997.30-138,510,478.20

Finding the Fourth Proportional to 166,853,998.20, 250,280,997.30 and 138,510,478.20

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Solution

The fourth proportional to 166,853,998.20, 250,280,997.30 and 138,510,478.20 is: 207,765,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,853,998.20 : 250,280,997.30 = 138,510,478.20 : x
  2. Step 2: Convert to fraction form
    166,853,998.20/250,280,997.30 = 138,510,478.20/x
  3. Step 3: Cross multiply
    166,853,998.20x = 250,280,997.30 × 138,510,478.20
  4. Step 4: Simplify right side
    166,853,998.20x = 34,666,540,620,395,908
  5. Step 5: Solve for x
    x = 34,666,540,620,395,908/166,853,998.20
  6. Step 6: Final answer
    x = 207,765,717.30

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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.