Home / 412,979,872.20-619,469,808.30-310,943,200.20

Finding the Fourth Proportional to 412,979,872.20, 619,469,808.30 and 310,943,200.20

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Solution

The fourth proportional to 412,979,872.20, 619,469,808.30 and 310,943,200.20 is: 466,414,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,979,872.20 : 619,469,808.30 = 310,943,200.20 : x
  2. Step 2: Convert to fraction form
    412,979,872.20/619,469,808.30 = 310,943,200.20/x
  3. Step 3: Cross multiply
    412,979,872.20x = 619,469,808.30 × 310,943,200.20
  4. Step 4: Simplify right side
    412,979,872.20x = 192,619,924,620,082,496
  5. Step 5: Solve for x
    x = 192,619,924,620,082,496/412,979,872.20
  6. Step 6: Final answer
    x = 466,414,800.30

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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.