Home / 13,591,103-18,755,716.68-7,479,531.50

Finding the Fourth Proportional to 13,591,103, 18,755,716.68 and 7,479,531.50

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Solution

The fourth proportional to 13,591,103, 18,755,716.68 and 7,479,531.50 is: 10,321,750.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591,103 : 18,755,716.68 = 7,479,531.50 : x
  2. Step 2: Convert to fraction form
    13,591,103/18,755,716.68 = 7,479,531.50/x
  3. Step 3: Cross multiply
    13,591,103x = 18,755,716.68 × 7,479,531.50
  4. Step 4: Simplify right side
    13,591,103x = 140,283,973,713,135.42
  5. Step 5: Solve for x
    x = 140,283,973,713,135.42/13,591,103
  6. Step 6: Final answer
    x = 10,321,750.47

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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.