Home / 3,878,553.12-5,352,293.60-2,112,411.36

Finding the Fourth Proportional to 3,878,553.12, 5,352,293.60 and 2,112,411.36

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Solution

The fourth proportional to 3,878,553.12, 5,352,293.60 and 2,112,411.36 is: 2,915,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,553.12 : 5,352,293.60 = 2,112,411.36 : x
  2. Step 2: Convert to fraction form
    3,878,553.12/5,352,293.60 = 2,112,411.36/x
  3. Step 3: Cross multiply
    3,878,553.12x = 5,352,293.60 × 2,112,411.36
  4. Step 4: Simplify right side
    3,878,553.12x = 11,306,245,802,695.29
  5. Step 5: Solve for x
    x = 11,306,245,802,695.29/3,878,553.12
  6. Step 6: Final answer
    x = 2,915,067.93

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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.