Home / 20,806,185.98-31,221,608.25-11,591,870.96

Finding the Fourth Proportional to 20,806,185.98, 31,221,608.25 and 11,591,870.96

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Solution

The fourth proportional to 20,806,185.98, 31,221,608.25 and 11,591,870.96 is: 17,394,675.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,185.98 : 31,221,608.25 = 11,591,870.96 : x
  2. Step 2: Convert to fraction form
    20,806,185.98/31,221,608.25 = 11,591,870.96/x
  3. Step 3: Cross multiply
    20,806,185.98x = 31,221,608.25 × 11,591,870.96
  4. Step 4: Simplify right side
    20,806,185.98x = 361,916,853,997,671.44
  5. Step 5: Solve for x
    x = 361,916,853,997,671.44/20,806,185.98
  6. Step 6: Final answer
    x = 17,394,675.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.