Home / 13,029,344.88-17,980,517.12-7,228,126.76

Finding the Fourth Proportional to 13,029,344.88, 17,980,517.12 and 7,228,126.76

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Solution

The fourth proportional to 13,029,344.88, 17,980,517.12 and 7,228,126.76 is: 9,974,826.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029,344.88 : 17,980,517.12 = 7,228,126.76 : x
  2. Step 2: Convert to fraction form
    13,029,344.88/17,980,517.12 = 7,228,126.76/x
  3. Step 3: Cross multiply
    13,029,344.88x = 17,980,517.12 × 7,228,126.76
  4. Step 4: Simplify right side
    13,029,344.88x = 129,965,456,953,710.14
  5. Step 5: Solve for x
    x = 129,965,456,953,710.14/13,029,344.88
  6. Step 6: Final answer
    x = 9,974,826.68

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Double scale
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Similar ratio
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1.5x scale

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.