Home / 20,685,397.32-28,545,262.92-11,265,974.82

Finding the Fourth Proportional to 20,685,397.32, 28,545,262.92 and 11,265,974.82

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Solution

The fourth proportional to 20,685,397.32, 28,545,262.92 and 11,265,974.82 is: 15,546,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685,397.32 : 28,545,262.92 = 11,265,974.82 : x
  2. Step 2: Convert to fraction form
    20,685,397.32/28,545,262.92 = 11,265,974.82/x
  3. Step 3: Cross multiply
    20,685,397.32x = 28,545,262.92 × 11,265,974.82
  4. Step 4: Simplify right side
    20,685,397.32x = 321,590,213,286,999.69
  5. Step 5: Solve for x
    x = 321,590,213,286,999.69/20,685,397.32
  6. Step 6: Final answer
    x = 15,546,726.43

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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.