Home / 500,196,198.66-690,274,806.97-277,181,605.43

Finding the Fourth Proportional to 500,196,198.66, 690,274,806.97 and 277,181,605.43

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Solution

The fourth proportional to 500,196,198.66, 690,274,806.97 and 277,181,605.43 is: 382,512,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,196,198.66 : 690,274,806.97 = 277,181,605.43 : x
  2. Step 2: Convert to fraction form
    500,196,198.66/690,274,806.97 = 277,181,605.43/x
  3. Step 3: Cross multiply
    500,196,198.66x = 690,274,806.97 × 277,181,605.43
  4. Step 4: Simplify right side
    500,196,198.66x = 191,331,479,183,569,344
  5. Step 5: Solve for x
    x = 191,331,479,183,569,344/500,196,198.66
  6. Step 6: Final answer
    x = 382,512,861.34

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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.