Home / 815,997,107.27-1,224,235,805.82-263,289,167.06

Finding the Fourth Proportional to 815,997,107.27, 1,224,235,805.82 and 263,289,167.06

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Solution

The fourth proportional to 815,997,107.27, 1,224,235,805.82 and 263,289,167.06 is: 395,011,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,997,107.27 : 1,224,235,805.82 = 263,289,167.06 : x
  2. Step 2: Convert to fraction form
    815,997,107.27/1,224,235,805.82 = 263,289,167.06/x
  3. Step 3: Cross multiply
    815,997,107.27x = 1,224,235,805.82 × 263,289,167.06
  4. Step 4: Simplify right side
    815,997,107.27x = 322,328,025,599,375,680
  5. Step 5: Solve for x
    x = 322,328,025,599,375,680/815,997,107.27
  6. Step 6: Final answer
    x = 395,011,235.61

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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.