Home / 13,310,081.50-18,367,912.50-7,198,510

Finding the Fourth Proportional to 13,310,081.50, 18,367,912.50 and 7,198,510

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Solution

The fourth proportional to 13,310,081.50, 18,367,912.50 and 7,198,510 is: 9,933,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,081.50 : 18,367,912.50 = 7,198,510 : x
  2. Step 2: Convert to fraction form
    13,310,081.50/18,367,912.50 = 7,198,510/x
  3. Step 3: Cross multiply
    13,310,081.50x = 18,367,912.50 × 7,198,510
  4. Step 4: Simplify right side
    13,310,081.50x = 132,221,601,810,375
  5. Step 5: Solve for x
    x = 132,221,601,810,375/13,310,081.50
  6. Step 6: Final answer
    x = 9,933,943.82

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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.