Home / 401,381,629,419.35-553,921,265,481.85-218,469,894,074.40

Finding the Fourth Proportional to 401,381,629,419.35, 553,921,265,481.85 and 218,469,894,074.40

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Solution

The fourth proportional to 401,381,629,419.35, 553,921,265,481.85 and 218,469,894,074.40 is: 301,496,409,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,381,629,419.35 : 553,921,265,481.85 = 218,469,894,074.40 : x
  2. Step 2: Convert to fraction form
    401,381,629,419.35/553,921,265,481.85 = 218,469,894,074.40/x
  3. Step 3: Cross multiply
    401,381,629,419.35x = 553,921,265,481.85 × 218,469,894,074.40
  4. Step 4: Simplify right side
    401,381,629,419.35x = 121,015,120,195,377,365,516,288
  5. Step 5: Solve for x
    x = 121,015,120,195,377,365,516,288/401,381,629,419.35
  6. Step 6: Final answer
    x = 301,496,409,714.72

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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.