Home / 18,433,780.80-25,432,546.92-11,911,252.56

Finding the Fourth Proportional to 18,433,780.80, 25,432,546.92 and 11,911,252.56

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Solution

The fourth proportional to 18,433,780.80, 25,432,546.92 and 11,911,252.56 is: 16,433,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433,780.80 : 25,432,546.92 = 11,911,252.56 : x
  2. Step 2: Convert to fraction form
    18,433,780.80/25,432,546.92 = 11,911,252.56/x
  3. Step 3: Cross multiply
    18,433,780.80x = 25,432,546.92 × 11,911,252.56
  4. Step 4: Simplify right side
    18,433,780.80x = 302,933,489,608,170.12
  5. Step 5: Solve for x
    x = 302,933,489,608,170.12/18,433,780.80
  6. Step 6: Final answer
    x = 16,433,605.94

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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.