Home / 31,279,137.72-43,164,793.26-17,528,370.36

Finding the Fourth Proportional to 31,279,137.72, 43,164,793.26 and 17,528,370.36

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Solution

The fourth proportional to 31,279,137.72, 43,164,793.26 and 17,528,370.36 is: 24,188,917.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279,137.72 : 43,164,793.26 = 17,528,370.36 : x
  2. Step 2: Convert to fraction form
    31,279,137.72/43,164,793.26 = 17,528,370.36/x
  3. Step 3: Cross multiply
    31,279,137.72x = 43,164,793.26 × 17,528,370.36
  4. Step 4: Simplify right side
    31,279,137.72x = 756,608,482,774,111.75
  5. Step 5: Solve for x
    x = 756,608,482,774,111.75/31,279,137.72
  6. Step 6: Final answer
    x = 24,188,917.53

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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.