Home / 31,709,872.14-43,758,879.29-18,657,976.43

Finding the Fourth Proportional to 31,709,872.14, 43,758,879.29 and 18,657,976.43

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Solution

The fourth proportional to 31,709,872.14, 43,758,879.29 and 18,657,976.43 is: 25,747,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709,872.14 : 43,758,879.29 = 18,657,976.43 : x
  2. Step 2: Convert to fraction form
    31,709,872.14/43,758,879.29 = 18,657,976.43/x
  3. Step 3: Cross multiply
    31,709,872.14x = 43,758,879.29 × 18,657,976.43
  4. Step 4: Simplify right side
    31,709,872.14x = 816,452,138,396,035.12
  5. Step 5: Solve for x
    x = 816,452,138,396,035.12/31,709,872.14
  6. Step 6: Final answer
    x = 25,747,569.55

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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.