Home / 278,129,231.70-417,193,847.55-134,801,999.70

Finding the Fourth Proportional to 278,129,231.70, 417,193,847.55 and 134,801,999.70

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Solution

The fourth proportional to 278,129,231.70, 417,193,847.55 and 134,801,999.70 is: 202,202,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,129,231.70 : 417,193,847.55 = 134,801,999.70 : x
  2. Step 2: Convert to fraction form
    278,129,231.70/417,193,847.55 = 134,801,999.70/x
  3. Step 3: Cross multiply
    278,129,231.70x = 417,193,847.55 × 134,801,999.70
  4. Step 4: Simplify right side
    278,129,231.70x = 56,238,564,912,276,944
  5. Step 5: Solve for x
    x = 56,238,564,912,276,944/278,129,231.70
  6. Step 6: Final answer
    x = 202,202,999.55

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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.