Home / 6,438,286.80-8,885,608.20-3,861,385.20

Finding the Fourth Proportional to 6,438,286.80, 8,885,608.20 and 3,861,385.20

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Solution

The fourth proportional to 6,438,286.80, 8,885,608.20 and 3,861,385.20 is: 5,329,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,286.80 : 8,885,608.20 = 3,861,385.20 : x
  2. Step 2: Convert to fraction form
    6,438,286.80/8,885,608.20 = 3,861,385.20/x
  3. Step 3: Cross multiply
    6,438,286.80x = 8,885,608.20 × 3,861,385.20
  4. Step 4: Simplify right side
    6,438,286.80x = 34,310,755,996,478.64
  5. Step 5: Solve for x
    x = 34,310,755,996,478.64/6,438,286.80
  6. Step 6: Final answer
    x = 5,329,174.84

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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.