Home / 561,723,481.80-842,587,847.10-198,217,837.80

Finding the Fourth Proportional to 561,723,481.80, 842,587,847.10 and 198,217,837.80

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Solution

The fourth proportional to 561,723,481.80, 842,587,847.10 and 198,217,837.80 is: 297,327,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,723,481.80 : 842,587,847.10 = 198,217,837.80 : x
  2. Step 2: Convert to fraction form
    561,723,481.80/842,587,847.10 = 198,217,837.80/x
  3. Step 3: Cross multiply
    561,723,481.80x = 842,587,847.10 × 198,217,837.80
  4. Step 4: Simplify right side
    561,723,481.80x = 167,015,941,208,719,008
  5. Step 5: Solve for x
    x = 167,015,941,208,719,008/561,723,481.80
  6. Step 6: Final answer
    x = 297,327,682.78

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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.