Home / 31,890,999.97-44,023,183.56-21,443,072.21

Finding the Fourth Proportional to 31,890,999.97, 44,023,183.56 and 21,443,072.21

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Solution

The fourth proportional to 31,890,999.97, 44,023,183.56 and 21,443,072.21 is: 29,600,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890,999.97 : 44,023,183.56 = 21,443,072.21 : x
  2. Step 2: Convert to fraction form
    31,890,999.97/44,023,183.56 = 21,443,072.21/x
  3. Step 3: Cross multiply
    31,890,999.97x = 44,023,183.56 × 21,443,072.21
  4. Step 4: Simplify right side
    31,890,999.97x = 943,992,303,663,833.50
  5. Step 5: Solve for x
    x = 943,992,303,663,833.50/31,890,999.97
  6. Step 6: Final answer
    x = 29,600,586.52

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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.