Home / 138,453,057.38-191,124,049.56-86,267,876.42

Finding the Fourth Proportional to 138,453,057.38, 191,124,049.56 and 86,267,876.42

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Solution

The fourth proportional to 138,453,057.38, 191,124,049.56 and 86,267,876.42 is: 119,086,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,453,057.38 : 191,124,049.56 = 86,267,876.42 : x
  2. Step 2: Convert to fraction form
    138,453,057.38/191,124,049.56 = 86,267,876.42/x
  3. Step 3: Cross multiply
    138,453,057.38x = 191,124,049.56 × 86,267,876.42
  4. Step 4: Simplify right side
    138,453,057.38x = 16,487,865,888,332,036
  5. Step 5: Solve for x
    x = 16,487,865,888,332,036/138,453,057.38
  6. Step 6: Final answer
    x = 119,086,325.72

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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.