Home / 859,469,739.22-1,289,202,999.62-269,305,158.88

Finding the Fourth Proportional to 859,469,739.22, 1,289,202,999.62 and 269,305,158.88

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Solution

The fourth proportional to 859,469,739.22, 1,289,202,999.62 and 269,305,158.88 is: 403,957,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,469,739.22 : 1,289,202,999.62 = 269,305,158.88 : x
  2. Step 2: Convert to fraction form
    859,469,739.22/1,289,202,999.62 = 269,305,158.88/x
  3. Step 3: Cross multiply
    859,469,739.22x = 1,289,202,999.62 × 269,305,158.88
  4. Step 4: Simplify right side
    859,469,739.22x = 347,189,018,641,501,696
  5. Step 5: Solve for x
    x = 347,189,018,641,501,696/859,469,739.22
  6. Step 6: Final answer
    x = 403,957,234.09

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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.