Home / 825,947,988.43-1,238,469,144.55-327,453,507.17

Finding the Fourth Proportional to 825,947,988.43, 1,238,469,144.55 and 327,453,507.17

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Solution

The fourth proportional to 825,947,988.43, 1,238,469,144.55 and 327,453,507.17 is: 491,000,729.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,947,988.43 : 1,238,469,144.55 = 327,453,507.17 : x
  2. Step 2: Convert to fraction form
    825,947,988.43/1,238,469,144.55 = 327,453,507.17/x
  3. Step 3: Cross multiply
    825,947,988.43x = 1,238,469,144.55 × 327,453,507.17
  4. Step 4: Simplify right side
    825,947,988.43x = 405,541,064,907,004,736
  5. Step 5: Solve for x
    x = 405,541,064,907,004,736/825,947,988.43
  6. Step 6: Final answer
    x = 491,000,729.57

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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.