Home / 138,452,857.25-191,123,773.52-86,267,676.11

Finding the Fourth Proportional to 138,452,857.25, 191,123,773.52 and 86,267,676.11

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Solution

The fourth proportional to 138,452,857.25, 191,123,773.52 and 86,267,676.11 is: 119,086,049.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,857.25 : 191,123,773.52 = 86,267,676.11 : x
  2. Step 2: Convert to fraction form
    138,452,857.25/191,123,773.52 = 86,267,676.11/x
  3. Step 3: Cross multiply
    138,452,857.25x = 191,123,773.52 × 86,267,676.11
  4. Step 4: Simplify right side
    138,452,857.25x = 16,487,803,789,557,396
  5. Step 5: Solve for x
    x = 16,487,803,789,557,396/138,452,857.25
  6. Step 6: Final answer
    x = 119,086,049.34

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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.