Home / 829,377,379.92-1,244,251,629.54-311,812,305.24

Finding the Fourth Proportional to 829,377,379.92, 1,244,251,629.54 and 311,812,305.24

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Solution

The fourth proportional to 829,377,379.92, 1,244,251,629.54 and 311,812,305.24 is: 467,788,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,377,379.92 : 1,244,251,629.54 = 311,812,305.24 : x
  2. Step 2: Convert to fraction form
    829,377,379.92/1,244,251,629.54 = 311,812,305.24/x
  3. Step 3: Cross multiply
    829,377,379.92x = 1,244,251,629.54 × 311,812,305.24
  4. Step 4: Simplify right side
    829,377,379.92x = 387,972,968,905,493,888
  5. Step 5: Solve for x
    x = 387,972,968,905,493,888/829,377,379.92
  6. Step 6: Final answer
    x = 467,788,220.78

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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.