Home / 289,231,694.46-399,197,671.92-171,822,249.54

Finding the Fourth Proportional to 289,231,694.46, 399,197,671.92 and 171,822,249.54

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Solution

The fourth proportional to 289,231,694.46, 399,197,671.92 and 171,822,249.54 is: 237,149,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,231,694.46 : 399,197,671.92 = 171,822,249.54 : x
  2. Step 2: Convert to fraction form
    289,231,694.46/399,197,671.92 = 171,822,249.54/x
  3. Step 3: Cross multiply
    289,231,694.46x = 399,197,671.92 × 171,822,249.54
  4. Step 4: Simplify right side
    289,231,694.46x = 68,591,042,000,425,288
  5. Step 5: Solve for x
    x = 68,591,042,000,425,288/289,231,694.46
  6. Step 6: Final answer
    x = 237,149,120.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.