Home / 172,436,220.55-258,654,330.83-155,430,108.55

Finding the Fourth Proportional to 172,436,220.55, 258,654,330.83 and 155,430,108.55

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Solution

The fourth proportional to 172,436,220.55, 258,654,330.83 and 155,430,108.55 is: 233,145,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,436,220.55 : 258,654,330.83 = 155,430,108.55 : x
  2. Step 2: Convert to fraction form
    172,436,220.55/258,654,330.83 = 155,430,108.55/x
  3. Step 3: Cross multiply
    172,436,220.55x = 258,654,330.83 × 155,430,108.55
  4. Step 4: Simplify right side
    172,436,220.55x = 40,202,670,717,834,520
  5. Step 5: Solve for x
    x = 40,202,670,717,834,520/172,436,220.55
  6. Step 6: Final answer
    x = 233,145,162.83

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Similar ratio
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1.5x scale

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.