Home / 3,982,729,940.80-5,974,094,911.20-3,438,086,459.20

Finding the Fourth Proportional to 3,982,729,940.80, 5,974,094,911.20 and 3,438,086,459.20

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Solution

The fourth proportional to 3,982,729,940.80, 5,974,094,911.20 and 3,438,086,459.20 is: 5,157,129,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982,729,940.80 : 5,974,094,911.20 = 3,438,086,459.20 : x
  2. Step 2: Convert to fraction form
    3,982,729,940.80/5,974,094,911.20 = 3,438,086,459.20/x
  3. Step 3: Cross multiply
    3,982,729,940.80x = 5,974,094,911.20 × 3,438,086,459.20
  4. Step 4: Simplify right side
    3,982,729,940.80x = 20,539,454,820,172,345,344
  5. Step 5: Solve for x
    x = 20,539,454,820,172,345,344/3,982,729,940.80
  6. Step 6: Final answer
    x = 5,157,129,688.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.