Home / 6,391,481.80-9,574,781.10-3,859,616.20

Finding the Fourth Proportional to 6,391,481.80, 9,574,781.10 and 3,859,616.20

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Solution

The fourth proportional to 6,391,481.80, 9,574,781.10 and 3,859,616.20 is: 5,781,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,481.80 : 9,574,781.10 = 3,859,616.20 : x
  2. Step 2: Convert to fraction form
    6,391,481.80/9,574,781.10 = 3,859,616.20/x
  3. Step 3: Cross multiply
    6,391,481.80x = 9,574,781.10 × 3,859,616.20
  4. Step 4: Simplify right side
    6,391,481.80x = 36,954,980,245,013.82
  5. Step 5: Solve for x
    x = 36,954,980,245,013.82/6,391,481.80
  6. Step 6: Final answer
    x = 5,781,911.21

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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.