Home / 12,878,072.97-17,767,865.25-7,719,552.33

Finding the Fourth Proportional to 12,878,072.97, 17,767,865.25 and 7,719,552.33

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Solution

The fourth proportional to 12,878,072.97, 17,767,865.25 and 7,719,552.33 is: 10,650,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,072.97 : 17,767,865.25 = 7,719,552.33 : x
  2. Step 2: Convert to fraction form
    12,878,072.97/17,767,865.25 = 7,719,552.33/x
  3. Step 3: Cross multiply
    12,878,072.97x = 17,767,865.25 × 7,719,552.33
  4. Step 4: Simplify right side
    12,878,072.97x = 137,159,965,589,763.53
  5. Step 5: Solve for x
    x = 137,159,965,589,763.53/12,878,072.97
  6. Step 6: Final answer
    x = 10,650,659.14

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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.