Home / 8,166,691.30-12,236,040.15-5,325,340.90

Finding the Fourth Proportional to 8,166,691.30, 12,236,040.15 and 5,325,340.90

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Solution

The fourth proportional to 8,166,691.30, 12,236,040.15 and 5,325,340.90 is: 7,978,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166,691.30 : 12,236,040.15 = 5,325,340.90 : x
  2. Step 2: Convert to fraction form
    8,166,691.30/12,236,040.15 = 5,325,340.90/x
  3. Step 3: Cross multiply
    8,166,691.30x = 12,236,040.15 × 5,325,340.90
  4. Step 4: Simplify right side
    8,166,691.30x = 65,161,085,064,837.14
  5. Step 5: Solve for x
    x = 65,161,085,064,837.14/8,166,691.30
  6. Step 6: Final answer
    x = 7,978,884.31

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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.