Home / 13,650,393.97-18,837,428.20-7,538,691.25

Finding the Fourth Proportional to 13,650,393.97, 18,837,428.20 and 7,538,691.25

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Solution

The fourth proportional to 13,650,393.97, 18,837,428.20 and 7,538,691.25 is: 10,403,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650,393.97 : 18,837,428.20 = 7,538,691.25 : x
  2. Step 2: Convert to fraction form
    13,650,393.97/18,837,428.20 = 7,538,691.25/x
  3. Step 3: Cross multiply
    13,650,393.97x = 18,837,428.20 × 7,538,691.25
  4. Step 4: Simplify right side
    13,650,393.97x = 142,009,555,143,843.25
  5. Step 5: Solve for x
    x = 142,009,555,143,843.25/13,650,393.97
  6. Step 6: Final answer
    x = 10,403,330.15

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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.