Home / 829,377,377.92-1,244,251,626.54-311,812,303.24

Finding the Fourth Proportional to 829,377,377.92, 1,244,251,626.54 and 311,812,303.24

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Solution

The fourth proportional to 829,377,377.92, 1,244,251,626.54 and 311,812,303.24 is: 467,788,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,377,377.92 : 1,244,251,626.54 = 311,812,303.24 : x
  2. Step 2: Convert to fraction form
    829,377,377.92/1,244,251,626.54 = 311,812,303.24/x
  3. Step 3: Cross multiply
    829,377,377.92x = 1,244,251,626.54 × 311,812,303.24
  4. Step 4: Simplify right side
    829,377,377.92x = 387,972,965,481,553,728
  5. Step 5: Solve for x
    x = 387,972,965,481,553,728/829,377,377.92
  6. Step 6: Final answer
    x = 467,788,217.78

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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.