Home / 126,145,346.20-189,218,019.30-30,407,234.20

Finding the Fourth Proportional to 126,145,346.20, 189,218,019.30 and 30,407,234.20

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Solution

The fourth proportional to 126,145,346.20, 189,218,019.30 and 30,407,234.20 is: 45,610,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,145,346.20 : 189,218,019.30 = 30,407,234.20 : x
  2. Step 2: Convert to fraction form
    126,145,346.20/189,218,019.30 = 30,407,234.20/x
  3. Step 3: Cross multiply
    126,145,346.20x = 189,218,019.30 × 30,407,234.20
  4. Step 4: Simplify right side
    126,145,346.20x = 5,753,596,627,715,220
  5. Step 5: Solve for x
    x = 5,753,596,627,715,220/126,145,346.20
  6. Step 6: Final answer
    x = 45,610,851.30

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Similar ratio
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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.