Home / 20,489,499.99-28,274,399.87-11,321,552.25

Finding the Fourth Proportional to 20,489,499.99, 28,274,399.87 and 11,321,552.25

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Solution

The fourth proportional to 20,489,499.99, 28,274,399.87 and 11,321,552.25 is: 15,623,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,489,499.99 : 28,274,399.87 = 11,321,552.25 : x
  2. Step 2: Convert to fraction form
    20,489,499.99/28,274,399.87 = 11,321,552.25/x
  3. Step 3: Cross multiply
    20,489,499.99x = 28,274,399.87 × 11,321,552.25
  4. Step 4: Simplify right side
    20,489,499.99x = 320,110,095,408,990.44
  5. Step 5: Solve for x
    x = 320,110,095,408,990.44/20,489,499.99
  6. Step 6: Final answer
    x = 15,623,128.70

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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.