Home / 126,512,800.20-189,769,200.30-75,452,473.80

Finding the Fourth Proportional to 126,512,800.20, 189,769,200.30 and 75,452,473.80

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Solution

The fourth proportional to 126,512,800.20, 189,769,200.30 and 75,452,473.80 is: 113,178,710.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,512,800.20 : 189,769,200.30 = 75,452,473.80 : x
  2. Step 2: Convert to fraction form
    126,512,800.20/189,769,200.30 = 75,452,473.80/x
  3. Step 3: Cross multiply
    126,512,800.20x = 189,769,200.30 × 75,452,473.80
  4. Step 4: Simplify right side
    126,512,800.20x = 14,318,555,613,682,702
  5. Step 5: Solve for x
    x = 14,318,555,613,682,702/126,512,800.20
  6. Step 6: Final answer
    x = 113,178,710.70

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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.