Home / 412,853,158.80-619,279,738.20-396,980,787.60

Finding the Fourth Proportional to 412,853,158.80, 619,279,738.20 and 396,980,787.60

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Solution

The fourth proportional to 412,853,158.80, 619,279,738.20 and 396,980,787.60 is: 595,471,181.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,853,158.80 : 619,279,738.20 = 396,980,787.60 : x
  2. Step 2: Convert to fraction form
    412,853,158.80/619,279,738.20 = 396,980,787.60/x
  3. Step 3: Cross multiply
    412,853,158.80x = 619,279,738.20 × 396,980,787.60
  4. Step 4: Simplify right side
    412,853,158.80x = 245,842,158,215,357,856
  5. Step 5: Solve for x
    x = 245,842,158,215,357,856/412,853,158.80
  6. Step 6: Final answer
    x = 595,471,181.40

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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.