Home / 168,502,405.70-252,753,608.55-139,277,087.30

Finding the Fourth Proportional to 168,502,405.70, 252,753,608.55 and 139,277,087.30

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Solution

The fourth proportional to 168,502,405.70, 252,753,608.55 and 139,277,087.30 is: 208,915,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,502,405.70 : 252,753,608.55 = 139,277,087.30 : x
  2. Step 2: Convert to fraction form
    168,502,405.70/252,753,608.55 = 139,277,087.30/x
  3. Step 3: Cross multiply
    168,502,405.70x = 252,753,608.55 × 139,277,087.30
  4. Step 4: Simplify right side
    168,502,405.70x = 35,202,786,403,408,380
  5. Step 5: Solve for x
    x = 35,202,786,403,408,380/168,502,405.70
  6. Step 6: Final answer
    x = 208,915,630.95

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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.