Home / 13,766,425.85-20,649,638.78-8,391,654.65

Finding the Fourth Proportional to 13,766,425.85, 20,649,638.78 and 8,391,654.65

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Solution

The fourth proportional to 13,766,425.85, 20,649,638.78 and 8,391,654.65 is: 12,587,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766,425.85 : 20,649,638.78 = 8,391,654.65 : x
  2. Step 2: Convert to fraction form
    13,766,425.85/20,649,638.78 = 8,391,654.65/x
  3. Step 3: Cross multiply
    13,766,425.85x = 20,649,638.78 × 8,391,654.65
  4. Step 4: Simplify right side
    13,766,425.85x = 173,284,637,247,049.06
  5. Step 5: Solve for x
    x = 173,284,637,247,049.06/13,766,425.85
  6. Step 6: Final answer
    x = 12,587,481.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.