Home / 126,012,759.70-189,019,139.55-100,503,591.70

Finding the Fourth Proportional to 126,012,759.70, 189,019,139.55 and 100,503,591.70

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Solution

The fourth proportional to 126,012,759.70, 189,019,139.55 and 100,503,591.70 is: 150,755,387.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,012,759.70 : 189,019,139.55 = 100,503,591.70 : x
  2. Step 2: Convert to fraction form
    126,012,759.70/189,019,139.55 = 100,503,591.70/x
  3. Step 3: Cross multiply
    126,012,759.70x = 189,019,139.55 × 100,503,591.70
  4. Step 4: Simplify right side
    126,012,759.70x = 18,997,102,424,818,524
  5. Step 5: Solve for x
    x = 18,997,102,424,818,524/126,012,759.70
  6. Step 6: Final answer
    x = 150,755,387.55

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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.