Home / 398,099,819.20-597,149,728.80-225,912,935.20

Finding the Fourth Proportional to 398,099,819.20, 597,149,728.80 and 225,912,935.20

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Solution

The fourth proportional to 398,099,819.20, 597,149,728.80 and 225,912,935.20 is: 338,869,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,099,819.20 : 597,149,728.80 = 225,912,935.20 : x
  2. Step 2: Convert to fraction form
    398,099,819.20/597,149,728.80 = 225,912,935.20/x
  3. Step 3: Cross multiply
    398,099,819.20x = 597,149,728.80 × 225,912,935.20
  4. Step 4: Simplify right side
    398,099,819.20x = 134,903,847,987,091,952
  5. Step 5: Solve for x
    x = 134,903,847,987,091,952/398,099,819.20
  6. Step 6: Final answer
    x = 338,869,402.80

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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.