Home / 126,029,213.20-189,043,819.80-100,520,045.20

Finding the Fourth Proportional to 126,029,213.20, 189,043,819.80 and 100,520,045.20

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Solution

The fourth proportional to 126,029,213.20, 189,043,819.80 and 100,520,045.20 is: 150,780,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,213.20 : 189,043,819.80 = 100,520,045.20 : x
  2. Step 2: Convert to fraction form
    126,029,213.20/189,043,819.80 = 100,520,045.20/x
  3. Step 3: Cross multiply
    126,029,213.20x = 189,043,819.80 × 100,520,045.20
  4. Step 4: Simplify right side
    126,029,213.20x = 19,002,693,311,076,656
  5. Step 5: Solve for x
    x = 19,002,693,311,076,656/126,029,213.20
  6. Step 6: Final answer
    x = 150,780,067.80

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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.