Home / 859,469,836.92-1,289,203,145.70-269,305,255.77

Finding the Fourth Proportional to 859,469,836.92, 1,289,203,145.70 and 269,305,255.77

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Solution

The fourth proportional to 859,469,836.92, 1,289,203,145.70 and 269,305,255.77 is: 403,957,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,469,836.92 : 1,289,203,145.70 = 269,305,255.77 : x
  2. Step 2: Convert to fraction form
    859,469,836.92/1,289,203,145.70 = 269,305,255.77/x
  3. Step 3: Cross multiply
    859,469,836.92x = 1,289,203,145.70 × 269,305,255.77
  4. Step 4: Simplify right side
    859,469,836.92x = 347,189,182,892,227,072
  5. Step 5: Solve for x
    x = 347,189,182,892,227,072/859,469,836.92
  6. Step 6: Final answer
    x = 403,957,379.28

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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.