Home / 6,391,678.10-9,587,517.15-2,131,985.30

Finding the Fourth Proportional to 6,391,678.10, 9,587,517.15 and 2,131,985.30

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Solution

The fourth proportional to 6,391,678.10, 9,587,517.15 and 2,131,985.30 is: 3,197,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,678.10 : 9,587,517.15 = 2,131,985.30 : x
  2. Step 2: Convert to fraction form
    6,391,678.10/9,587,517.15 = 2,131,985.30/x
  3. Step 3: Cross multiply
    6,391,678.10x = 9,587,517.15 × 2,131,985.30
  4. Step 4: Simplify right side
    6,391,678.10x = 20,440,445,627,297.89
  5. Step 5: Solve for x
    x = 20,440,445,627,297.89/6,391,678.10
  6. Step 6: Final answer
    x = 3,197,977.95

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Double scale
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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.