Home / 20,295,694.20-28,012,126.92-12,040,338.74

Finding the Fourth Proportional to 20,295,694.20, 28,012,126.92 and 12,040,338.74

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Solution

The fourth proportional to 20,295,694.20, 28,012,126.92 and 12,040,338.74 is: 16,618,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295,694.20 : 28,012,126.92 = 12,040,338.74 : x
  2. Step 2: Convert to fraction form
    20,295,694.20/28,012,126.92 = 12,040,338.74/x
  3. Step 3: Cross multiply
    20,295,694.20x = 28,012,126.92 × 12,040,338.74
  4. Step 4: Simplify right side
    20,295,694.20x = 337,275,496,804,612.25
  5. Step 5: Solve for x
    x = 337,275,496,804,612.25/20,295,694.20
  6. Step 6: Final answer
    x = 16,618,081.33

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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.