Home / 126,350,872.11-189,400,755.20-87,931,673.69

Finding the Fourth Proportional to 126,350,872.11, 189,400,755.20 and 87,931,673.69

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Solution

The fourth proportional to 126,350,872.11, 189,400,755.20 and 87,931,673.69 is: 131,810,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,350,872.11 : 189,400,755.20 = 87,931,673.69 : x
  2. Step 2: Convert to fraction form
    126,350,872.11/189,400,755.20 = 87,931,673.69/x
  3. Step 3: Cross multiply
    126,350,872.11x = 189,400,755.20 × 87,931,673.69
  4. Step 4: Simplify right side
    126,350,872.11x = 16,654,325,401,499,308
  5. Step 5: Solve for x
    x = 16,654,325,401,499,308/126,350,872.11
  6. Step 6: Final answer
    x = 131,810,134.14

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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.