Home / 31,394,856-43,315,164.36-18,332,692.32

Finding the Fourth Proportional to 31,394,856, 43,315,164.36 and 18,332,692.32

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Solution

The fourth proportional to 31,394,856, 43,315,164.36 and 18,332,692.32 is: 25,293,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,394,856 : 43,315,164.36 = 18,332,692.32 : x
  2. Step 2: Convert to fraction form
    31,394,856/43,315,164.36 = 18,332,692.32/x
  3. Step 3: Cross multiply
    31,394,856x = 43,315,164.36 × 18,332,692.32
  4. Step 4: Simplify right side
    31,394,856x = 794,083,581,002,109.75
  5. Step 5: Solve for x
    x = 794,083,581,002,109.75/31,394,856
  6. Step 6: Final answer
    x = 25,293,429.63

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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.