Home / 276,796,819.40-414,911,793.90-161,722,128.20

Finding the Fourth Proportional to 276,796,819.40, 414,911,793.90 and 161,722,128.20

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Solution

The fourth proportional to 276,796,819.40, 414,911,793.90 and 161,722,128.20 is: 242,417,591.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,796,819.40 : 414,911,793.90 = 161,722,128.20 : x
  2. Step 2: Convert to fraction form
    276,796,819.40/414,911,793.90 = 161,722,128.20/x
  3. Step 3: Cross multiply
    276,796,819.40x = 414,911,793.90 × 161,722,128.20
  4. Step 4: Simplify right side
    276,796,819.40x = 67,100,418,324,787,768
  5. Step 5: Solve for x
    x = 67,100,418,324,787,768/276,796,819.40
  6. Step 6: Final answer
    x = 242,417,591.61

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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.