Home / 31,245,342.96-43,109,246.16-20,214,625.26

Finding the Fourth Proportional to 31,245,342.96, 43,109,246.16 and 20,214,625.26

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Solution

The fourth proportional to 31,245,342.96, 43,109,246.16 and 20,214,625.26 is: 27,890,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,245,342.96 : 43,109,246.16 = 20,214,625.26 : x
  2. Step 2: Convert to fraction form
    31,245,342.96/43,109,246.16 = 20,214,625.26/x
  3. Step 3: Cross multiply
    31,245,342.96x = 43,109,246.16 × 20,214,625.26
  4. Step 4: Simplify right side
    31,245,342.96x = 871,437,256,365,494
  5. Step 5: Solve for x
    x = 871,437,256,365,494/31,245,342.96
  6. Step 6: Final answer
    x = 27,890,148.54

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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.