Home / 31,568,178.51-43,571,366.24-18,519,629.31

Finding the Fourth Proportional to 31,568,178.51, 43,571,366.24 and 18,519,629.31

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Solution

The fourth proportional to 31,568,178.51, 43,571,366.24 and 18,519,629.31 is: 25,561,359.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568,178.51 : 43,571,366.24 = 18,519,629.31 : x
  2. Step 2: Convert to fraction form
    31,568,178.51/43,571,366.24 = 18,519,629.31/x
  3. Step 3: Cross multiply
    31,568,178.51x = 43,571,366.24 × 18,519,629.31
  4. Step 4: Simplify right side
    31,568,178.51x = 806,925,551,202,450.25
  5. Step 5: Solve for x
    x = 806,925,551,202,450.25/31,568,178.51
  6. Step 6: Final answer
    x = 25,561,359.23

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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.