Home / 172,214,489.50-258,442,786.89-155,749,120.54

Finding the Fourth Proportional to 172,214,489.50, 258,442,786.89 and 155,749,120.54

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Solution

The fourth proportional to 172,214,489.50, 258,442,786.89 and 155,749,120.54 is: 233,733,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,214,489.50 : 258,442,786.89 = 155,749,120.54 : x
  2. Step 2: Convert to fraction form
    172,214,489.50/258,442,786.89 = 155,749,120.54/x
  3. Step 3: Cross multiply
    172,214,489.50x = 258,442,786.89 × 155,749,120.54
  4. Step 4: Simplify right side
    172,214,489.50x = 40,252,236,768,024,136
  5. Step 5: Solve for x
    x = 40,252,236,768,024,136/172,214,489.50
  6. Step 6: Final answer
    x = 233,733,159.65

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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.