Home / 305,914,337,918.22-422,163,098,793.45-166,868,649,789.79

Finding the Fourth Proportional to 305,914,337,918.22, 422,163,098,793.45 and 166,868,649,789.79

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Solution

The fourth proportional to 305,914,337,918.22, 422,163,098,793.45 and 166,868,649,789.79 is: 230,279,452,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,914,337,918.22 : 422,163,098,793.45 = 166,868,649,789.79 : x
  2. Step 2: Convert to fraction form
    305,914,337,918.22/422,163,098,793.45 = 166,868,649,789.79/x
  3. Step 3: Cross multiply
    305,914,337,918.22x = 422,163,098,793.45 × 166,868,649,789.79
  4. Step 4: Simplify right side
    305,914,337,918.22x = 70,445,786,286,736,730,488,832
  5. Step 5: Solve for x
    x = 70,445,786,286,736,730,488,832/305,914,337,918.22
  6. Step 6: Final answer
    x = 230,279,452,627.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.