Home / 327,661,477.20-491,492,215.80-85,324,381.20

Finding the Fourth Proportional to 327,661,477.20, 491,492,215.80 and 85,324,381.20

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Solution

The fourth proportional to 327,661,477.20, 491,492,215.80 and 85,324,381.20 is: 127,986,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,661,477.20 : 491,492,215.80 = 85,324,381.20 : x
  2. Step 2: Convert to fraction form
    327,661,477.20/491,492,215.80 = 85,324,381.20/x
  3. Step 3: Cross multiply
    327,661,477.20x = 491,492,215.80 × 85,324,381.20
  4. Step 4: Simplify right side
    327,661,477.20x = 41,936,269,177,751,864
  5. Step 5: Solve for x
    x = 41,936,269,177,751,864/327,661,477.20
  6. Step 6: Final answer
    x = 127,986,571.80

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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.