Home / 172,214,490.75-258,442,788.77-155,749,121.79

Finding the Fourth Proportional to 172,214,490.75, 258,442,788.77 and 155,749,121.79

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Solution

The fourth proportional to 172,214,490.75, 258,442,788.77 and 155,749,121.79 is: 233,733,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,214,490.75 : 258,442,788.77 = 155,749,121.79 : x
  2. Step 2: Convert to fraction form
    172,214,490.75/258,442,788.77 = 155,749,121.79/x
  3. Step 3: Cross multiply
    172,214,490.75x = 258,442,788.77 × 155,749,121.79
  4. Step 4: Simplify right side
    172,214,490.75x = 40,252,237,383,885,976
  5. Step 5: Solve for x
    x = 40,252,237,383,885,976/172,214,490.75
  6. Step 6: Final answer
    x = 233,733,161.53

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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.