Home / 20,923,456.45-28,874,717.81-11,504,645.23

Finding the Fourth Proportional to 20,923,456.45, 28,874,717.81 and 11,504,645.23

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Solution

The fourth proportional to 20,923,456.45, 28,874,717.81 and 11,504,645.23 is: 15,876,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923,456.45 : 28,874,717.81 = 11,504,645.23 : x
  2. Step 2: Convert to fraction form
    20,923,456.45/28,874,717.81 = 11,504,645.23/x
  3. Step 3: Cross multiply
    20,923,456.45x = 28,874,717.81 × 11,504,645.23
  4. Step 4: Simplify right side
    20,923,456.45x = 332,193,384,433,844.94
  5. Step 5: Solve for x
    x = 332,193,384,433,844.94/20,923,456.45
  6. Step 6: Final answer
    x = 15,876,601.71

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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.