Home / 15,419,794,342.38-21,274,229,591.71-9,313,865,412.59

Finding the Fourth Proportional to 15,419,794,342.38, 21,274,229,591.71 and 9,313,865,412.59

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Solution

The fourth proportional to 15,419,794,342.38, 21,274,229,591.71 and 9,313,865,412.59 is: 12,850,061,860.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419,794,342.38 : 21,274,229,591.71 = 9,313,865,412.59 : x
  2. Step 2: Convert to fraction form
    15,419,794,342.38/21,274,229,591.71 = 9,313,865,412.59/x
  3. Step 3: Cross multiply
    15,419,794,342.38x = 21,274,229,591.71 × 9,313,865,412.59
  4. Step 4: Simplify right side
    15,419,794,342.38x = 198,145,311,173,601,427,456
  5. Step 5: Solve for x
    x = 198,145,311,173,601,427,456/15,419,794,342.38
  6. Step 6: Final answer
    x = 12,850,061,860.36

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Double scale
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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.