Home / 207,861,641.10-311,456,538.45-131,047,202.70

Finding the Fourth Proportional to 207,861,641.10, 311,456,538.45 and 131,047,202.70

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Solution

The fourth proportional to 207,861,641.10, 311,456,538.45 and 131,047,202.70 is: 196,359,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,861,641.10 : 311,456,538.45 = 131,047,202.70 : x
  2. Step 2: Convert to fraction form
    207,861,641.10/311,456,538.45 = 131,047,202.70/x
  3. Step 3: Cross multiply
    207,861,641.10x = 311,456,538.45 × 131,047,202.70
  4. Step 4: Simplify right side
    207,861,641.10x = 40,815,508,126,497,496
  5. Step 5: Solve for x
    x = 40,815,508,126,497,496/207,861,641.10
  6. Step 6: Final answer
    x = 196,359,019.93

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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.