Home / 172,542,230.79-258,941,887.17-126,602,810.52

Finding the Fourth Proportional to 172,542,230.79, 258,941,887.17 and 126,602,810.52

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Solution

The fourth proportional to 172,542,230.79, 258,941,887.17 and 126,602,810.52 is: 189,998,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542,230.79 : 258,941,887.17 = 126,602,810.52 : x
  2. Step 2: Convert to fraction form
    172,542,230.79/258,941,887.17 = 126,602,810.52/x
  3. Step 3: Cross multiply
    172,542,230.79x = 258,941,887.17 × 126,602,810.52
  4. Step 4: Simplify right side
    172,542,230.79x = 32,782,770,677,074,728
  5. Step 5: Solve for x
    x = 32,782,770,677,074,728/172,542,230.79
  6. Step 6: Final answer
    x = 189,998,532.69

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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.