Home / 126,609,034.12-189,910,008.21-40,352,616.88

Finding the Fourth Proportional to 126,609,034.12, 189,910,008.21 and 40,352,616.88

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Solution

The fourth proportional to 126,609,034.12, 189,910,008.21 and 40,352,616.88 is: 60,527,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,609,034.12 : 189,910,008.21 = 40,352,616.88 : x
  2. Step 2: Convert to fraction form
    126,609,034.12/189,910,008.21 = 40,352,616.88/x
  3. Step 3: Cross multiply
    126,609,034.12x = 189,910,008.21 × 40,352,616.88
  4. Step 4: Simplify right side
    126,609,034.12x = 7,663,365,802,975,785
  5. Step 5: Solve for x
    x = 7,663,365,802,975,785/126,609,034.12
  6. Step 6: Final answer
    x = 60,527,796.11

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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.