Home / 20,568,645.32-28,384,115.36-11,275,897.83

Finding the Fourth Proportional to 20,568,645.32, 28,384,115.36 and 11,275,897.83

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Solution

The fourth proportional to 20,568,645.32, 28,384,115.36 and 11,275,897.83 is: 15,560,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568,645.32 : 28,384,115.36 = 11,275,897.83 : x
  2. Step 2: Convert to fraction form
    20,568,645.32/28,384,115.36 = 11,275,897.83/x
  3. Step 3: Cross multiply
    20,568,645.32x = 28,384,115.36 × 11,275,897.83
  4. Step 4: Simplify right side
    20,568,645.32x = 320,056,384,737,914.19
  5. Step 5: Solve for x
    x = 320,056,384,737,914.19/20,568,645.32
  6. Step 6: Final answer
    x = 15,560,401.76

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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.