Home / 304,546,361.64-420,274,512.24-165,317,217.72

Finding the Fourth Proportional to 304,546,361.64, 420,274,512.24 and 165,317,217.72

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Solution

The fourth proportional to 304,546,361.64, 420,274,512.24 and 165,317,217.72 is: 228,138,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,546,361.64 : 420,274,512.24 = 165,317,217.72 : x
  2. Step 2: Convert to fraction form
    304,546,361.64/420,274,512.24 = 165,317,217.72/x
  3. Step 3: Cross multiply
    304,546,361.64x = 420,274,512.24 × 165,317,217.72
  4. Step 4: Simplify right side
    304,546,361.64x = 69,478,613,042,146,888
  5. Step 5: Solve for x
    x = 69,478,613,042,146,888/304,546,361.64
  6. Step 6: Final answer
    x = 228,138,049.88

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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.