Home / 13,315,591.06-18,375,519.60-7,515,601.44

Finding the Fourth Proportional to 13,315,591.06, 18,375,519.60 and 7,515,601.44

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Solution

The fourth proportional to 13,315,591.06, 18,375,519.60 and 7,515,601.44 is: 10,371,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,591.06 : 18,375,519.60 = 7,515,601.44 : x
  2. Step 2: Convert to fraction form
    13,315,591.06/18,375,519.60 = 7,515,601.44/x
  3. Step 3: Cross multiply
    13,315,591.06x = 18,375,519.60 × 7,515,601.44
  4. Step 4: Simplify right side
    13,315,591.06x = 138,103,081,566,508.25
  5. Step 5: Solve for x
    x = 138,103,081,566,508.25/13,315,591.06
  6. Step 6: Final answer
    x = 10,371,532.21

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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.