Home / 12,251,271.20-18,376,906.80-7,968,250.40

Finding the Fourth Proportional to 12,251,271.20, 18,376,906.80 and 7,968,250.40

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Solution

The fourth proportional to 12,251,271.20, 18,376,906.80 and 7,968,250.40 is: 11,952,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,271.20 : 18,376,906.80 = 7,968,250.40 : x
  2. Step 2: Convert to fraction form
    12,251,271.20/18,376,906.80 = 7,968,250.40/x
  3. Step 3: Cross multiply
    12,251,271.20x = 18,376,906.80 × 7,968,250.40
  4. Step 4: Simplify right side
    12,251,271.20x = 146,431,794,959,862.72
  5. Step 5: Solve for x
    x = 146,431,794,959,862.72/12,251,271.20
  6. Step 6: Final answer
    x = 11,952,375.60

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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.