Home / 288,861,717.82-398,629,170.60-165,105,052.18

Finding the Fourth Proportional to 288,861,717.82, 398,629,170.60 and 165,105,052.18

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Solution

The fourth proportional to 288,861,717.82, 398,629,170.60 and 165,105,052.18 is: 227,844,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,717.82 : 398,629,170.60 = 165,105,052.18 : x
  2. Step 2: Convert to fraction form
    288,861,717.82/398,629,170.60 = 165,105,052.18/x
  3. Step 3: Cross multiply
    288,861,717.82x = 398,629,170.60 × 165,105,052.18
  4. Step 4: Simplify right side
    288,861,717.82x = 65,815,690,012,383,128
  5. Step 5: Solve for x
    x = 65,815,690,012,383,128/288,861,717.82
  6. Step 6: Final answer
    x = 227,844,972.01

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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.