Home / 20,539,561.32-28,345,480.14-11,372,203.80

Finding the Fourth Proportional to 20,539,561.32, 28,345,480.14 and 11,372,203.80

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Solution

The fourth proportional to 20,539,561.32, 28,345,480.14 and 11,372,203.80 is: 15,694,131.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,561.32 : 28,345,480.14 = 11,372,203.80 : x
  2. Step 2: Convert to fraction form
    20,539,561.32/28,345,480.14 = 11,372,203.80/x
  3. Step 3: Cross multiply
    20,539,561.32x = 28,345,480.14 × 11,372,203.80
  4. Step 4: Simplify right side
    20,539,561.32x = 322,350,576,960,932.56
  5. Step 5: Solve for x
    x = 322,350,576,960,932.56/20,539,561.32
  6. Step 6: Final answer
    x = 15,694,131.53

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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.