Home / 353,502,469.25-487,796,708.49-217,691,115.44

Finding the Fourth Proportional to 353,502,469.25, 487,796,708.49 and 217,691,115.44

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Solution

The fourth proportional to 353,502,469.25, 487,796,708.49 and 217,691,115.44 is: 300,391,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,502,469.25 : 487,796,708.49 = 217,691,115.44 : x
  2. Step 2: Convert to fraction form
    353,502,469.25/487,796,708.49 = 217,691,115.44/x
  3. Step 3: Cross multiply
    353,502,469.25x = 487,796,708.49 × 217,691,115.44
  4. Step 4: Simplify right side
    353,502,469.25x = 106,189,009,576,709,632
  5. Step 5: Solve for x
    x = 106,189,009,576,709,632/353,502,469.25
  6. Step 6: Final answer
    x = 300,391,139.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.