Home / 172,164,270.80-258,315,612.60-69,936,309.20

Finding the Fourth Proportional to 172,164,270.80, 258,315,612.60 and 69,936,309.20

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Solution

The fourth proportional to 172,164,270.80, 258,315,612.60 and 69,936,309.20 is: 104,932,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,164,270.80 : 258,315,612.60 = 69,936,309.20 : x
  2. Step 2: Convert to fraction form
    172,164,270.80/258,315,612.60 = 69,936,309.20/x
  3. Step 3: Cross multiply
    172,164,270.80x = 258,315,612.60 × 69,936,309.20
  4. Step 4: Simplify right side
    172,164,270.80x = 18,065,640,553,981,016
  5. Step 5: Solve for x
    x = 18,065,640,553,981,016/172,164,270.80
  6. Step 6: Final answer
    x = 104,932,576.72

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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.