Home / 31,638,548.88-43,661,541.06-18,586,357.92

Finding the Fourth Proportional to 31,638,548.88, 43,661,541.06 and 18,586,357.92

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Solution

The fourth proportional to 31,638,548.88, 43,661,541.06 and 18,586,357.92 is: 25,649,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638,548.88 : 43,661,541.06 = 18,586,357.92 : x
  2. Step 2: Convert to fraction form
    31,638,548.88/43,661,541.06 = 18,586,357.92/x
  3. Step 3: Cross multiply
    31,638,548.88x = 43,661,541.06 × 18,586,357.92
  4. Step 4: Simplify right side
    31,638,548.88x = 811,509,029,479,936.38
  5. Step 5: Solve for x
    x = 811,509,029,479,936.38/31,638,548.88
  6. Step 6: Final answer
    x = 25,649,375.78

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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.