Home / 126,029,218.70-189,043,828.05-100,520,050.70

Finding the Fourth Proportional to 126,029,218.70, 189,043,828.05 and 100,520,050.70

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Solution

The fourth proportional to 126,029,218.70, 189,043,828.05 and 100,520,050.70 is: 150,780,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,218.70 : 189,043,828.05 = 100,520,050.70 : x
  2. Step 2: Convert to fraction form
    126,029,218.70/189,043,828.05 = 100,520,050.70/x
  3. Step 3: Cross multiply
    126,029,218.70x = 189,043,828.05 × 100,520,050.70
  4. Step 4: Simplify right side
    126,029,218.70x = 19,002,695,180,108,084
  5. Step 5: Solve for x
    x = 19,002,695,180,108,084/126,029,218.70
  6. Step 6: Final answer
    x = 150,780,076.05

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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.