Home / 172,390,553.10-258,711,800.85-121,372,217.10

Finding the Fourth Proportional to 172,390,553.10, 258,711,800.85 and 121,372,217.10

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Solution

The fourth proportional to 172,390,553.10, 258,711,800.85 and 121,372,217.10 is: 182,147,016.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,390,553.10 : 258,711,800.85 = 121,372,217.10 : x
  2. Step 2: Convert to fraction form
    172,390,553.10/258,711,800.85 = 121,372,217.10/x
  3. Step 3: Cross multiply
    172,390,553.10x = 258,711,800.85 × 121,372,217.10
  4. Step 4: Simplify right side
    172,390,553.10x = 31,400,424,859,098,164
  5. Step 5: Solve for x
    x = 31,400,424,859,098,164/172,390,553.10
  6. Step 6: Final answer
    x = 182,147,016.15

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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.