Home / 12,729,591.12-17,558,902.62-7,765,764.60

Finding the Fourth Proportional to 12,729,591.12, 17,558,902.62 and 7,765,764.60

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Solution

The fourth proportional to 12,729,591.12, 17,558,902.62 and 7,765,764.60 is: 10,711,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729,591.12 : 17,558,902.62 = 7,765,764.60 : x
  2. Step 2: Convert to fraction form
    12,729,591.12/17,558,902.62 = 7,765,764.60/x
  3. Step 3: Cross multiply
    12,729,591.12x = 17,558,902.62 × 7,765,764.60
  4. Step 4: Simplify right side
    12,729,591.12x = 136,358,304,381,243.25
  5. Step 5: Solve for x
    x = 136,358,304,381,243.25/12,729,591.12
  6. Step 6: Final answer
    x = 10,711,915.50

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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.