Home / 445,775,076.20-667,339,916.70-331,267,255.40

Finding the Fourth Proportional to 445,775,076.20, 667,339,916.70 and 331,267,255.40

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Solution

The fourth proportional to 445,775,076.20, 667,339,916.70 and 331,267,255.40 is: 495,917,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,775,076.20 : 667,339,916.70 = 331,267,255.40 : x
  2. Step 2: Convert to fraction form
    445,775,076.20/667,339,916.70 = 331,267,255.40/x
  3. Step 3: Cross multiply
    445,775,076.20x = 667,339,916.70 × 331,267,255.40
  4. Step 4: Simplify right side
    445,775,076.20x = 221,067,862,624,073,632
  5. Step 5: Solve for x
    x = 221,067,862,624,073,632/445,775,076.20
  6. Step 6: Final answer
    x = 495,917,951.51

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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.