Home / 209,102,238.55-313,612,023.48-198,732,446.83

Finding the Fourth Proportional to 209,102,238.55, 313,612,023.48 and 198,732,446.83

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Solution

The fourth proportional to 209,102,238.55, 313,612,023.48 and 198,732,446.83 is: 298,059,385.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,102,238.55 : 313,612,023.48 = 198,732,446.83 : x
  2. Step 2: Convert to fraction form
    209,102,238.55/313,612,023.48 = 198,732,446.83/x
  3. Step 3: Cross multiply
    209,102,238.55x = 313,612,023.48 × 198,732,446.83
  4. Step 4: Simplify right side
    209,102,238.55x = 62,324,884,781,487,816
  5. Step 5: Solve for x
    x = 62,324,884,781,487,816/209,102,238.55
  6. Step 6: Final answer
    x = 298,059,385.75

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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.