Home / 126,278,418-172,998,537.77-121,557,212.16

Finding the Fourth Proportional to 126,278,418, 172,998,537.77 and 121,557,212.16

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Solution

The fourth proportional to 126,278,418, 172,998,537.77 and 121,557,212.16 is: 166,530,594.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,278,418 : 172,998,537.77 = 121,557,212.16 : x
  2. Step 2: Convert to fraction form
    126,278,418/172,998,537.77 = 121,557,212.16/x
  3. Step 3: Cross multiply
    126,278,418x = 172,998,537.77 × 121,557,212.16
  4. Step 4: Simplify right side
    126,278,418x = 21,029,219,958,469,876
  5. Step 5: Solve for x
    x = 21,029,219,958,469,876/126,278,418
  6. Step 6: Final answer
    x = 166,530,594.00

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.