Home / 12,382,042.11-18,489,684.92-10,112,072.79

Finding the Fourth Proportional to 12,382,042.11, 18,489,684.92 and 10,112,072.79

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Solution

The fourth proportional to 12,382,042.11, 18,489,684.92 and 10,112,072.79 is: 15,100,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382,042.11 : 18,489,684.92 = 10,112,072.79 : x
  2. Step 2: Convert to fraction form
    12,382,042.11/18,489,684.92 = 10,112,072.79/x
  3. Step 3: Cross multiply
    12,382,042.11x = 18,489,684.92 × 10,112,072.79
  4. Step 4: Simplify right side
    12,382,042.11x = 186,969,039,775,205.34
  5. Step 5: Solve for x
    x = 186,969,039,775,205.34/12,382,042.11
  6. Step 6: Final answer
    x = 15,100,016.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.