Home / 3,929,493,793.84-5,422,618,570.56-2,145,261,016.78

Finding the Fourth Proportional to 3,929,493,793.84, 5,422,618,570.56 and 2,145,261,016.78

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Solution

The fourth proportional to 3,929,493,793.84, 5,422,618,570.56 and 2,145,261,016.78 is: 2,960,414,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,493,793.84 : 5,422,618,570.56 = 2,145,261,016.78 : x
  2. Step 2: Convert to fraction form
    3,929,493,793.84/5,422,618,570.56 = 2,145,261,016.78/x
  3. Step 3: Cross multiply
    3,929,493,793.84x = 5,422,618,570.56 × 2,145,261,016.78
  4. Step 4: Simplify right side
    3,929,493,793.84x = 11,632,932,228,289,656,832
  5. Step 5: Solve for x
    x = 11,632,932,228,289,656,832/3,929,493,793.84
  6. Step 6: Final answer
    x = 2,960,414,964.02

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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.