Home / 31,358,799.66-43,276,372.99-21,456,452.18

Finding the Fourth Proportional to 31,358,799.66, 43,276,372.99 and 21,456,452.18

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Solution

The fourth proportional to 31,358,799.66, 43,276,372.99 and 21,456,452.18 is: 29,610,745.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358,799.66 : 43,276,372.99 = 21,456,452.18 : x
  2. Step 2: Convert to fraction form
    31,358,799.66/43,276,372.99 = 21,456,452.18/x
  3. Step 3: Cross multiply
    31,358,799.66x = 43,276,372.99 × 21,456,452.18
  4. Step 4: Simplify right side
    31,358,799.66x = 928,557,427,313,755.62
  5. Step 5: Solve for x
    x = 928,557,427,313,755.62/31,358,799.66
  6. Step 6: Final answer
    x = 29,610,745.23

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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.