Home / 221,475,105.72-332,208,382.08-66,134,167.86

Finding the Fourth Proportional to 221,475,105.72, 332,208,382.08 and 66,134,167.86

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Solution

The fourth proportional to 221,475,105.72, 332,208,382.08 and 66,134,167.86 is: 99,199,974.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,475,105.72 : 332,208,382.08 = 66,134,167.86 : x
  2. Step 2: Convert to fraction form
    221,475,105.72/332,208,382.08 = 66,134,167.86/x
  3. Step 3: Cross multiply
    221,475,105.72x = 332,208,382.08 × 66,134,167.86
  4. Step 4: Simplify right side
    221,475,105.72x = 21,970,324,904,977,736
  5. Step 5: Solve for x
    x = 21,970,324,904,977,736/221,475,105.72
  6. Step 6: Final answer
    x = 99,199,974.79

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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.