Home / 20,740,287.48-28,635,078.66-18,561,084.16

Finding the Fourth Proportional to 20,740,287.48, 28,635,078.66 and 18,561,084.16

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Solution

The fourth proportional to 20,740,287.48, 28,635,078.66 and 18,561,084.16 is: 25,626,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740,287.48 : 28,635,078.66 = 18,561,084.16 : x
  2. Step 2: Convert to fraction form
    20,740,287.48/28,635,078.66 = 18,561,084.16/x
  3. Step 3: Cross multiply
    20,740,287.48x = 28,635,078.66 × 18,561,084.16
  4. Step 4: Simplify right side
    20,740,287.48x = 531,498,104,936,480.06
  5. Step 5: Solve for x
    x = 531,498,104,936,480.06/20,740,287.48
  6. Step 6: Final answer
    x = 25,626,361.52

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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.