Home / 138,452,826.57-191,123,731.47-86,267,645.88

Finding the Fourth Proportional to 138,452,826.57, 191,123,731.47 and 86,267,645.88

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Solution

The fourth proportional to 138,452,826.57, 191,123,731.47 and 86,267,645.88 is: 119,086,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,826.57 : 191,123,731.47 = 86,267,645.88 : x
  2. Step 2: Convert to fraction form
    138,452,826.57/191,123,731.47 = 86,267,645.88/x
  3. Step 3: Cross multiply
    138,452,826.57x = 191,123,731.47 × 86,267,645.88
  4. Step 4: Simplify right side
    138,452,826.57x = 16,487,794,385,718,170
  5. Step 5: Solve for x
    x = 16,487,794,385,718,170/138,452,826.57
  6. Step 6: Final answer
    x = 119,086,007.81

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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.