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Finding the Fourth Proportional to 27,743,998.40, 41,615,997.60 and 20,135,268.80

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Solution

The fourth proportional to 27,743,998.40, 41,615,997.60 and 20,135,268.80 is: 30,202,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,743,998.40 : 41,615,997.60 = 20,135,268.80 : x
  2. Step 2: Convert to fraction form
    27,743,998.40/41,615,997.60 = 20,135,268.80/x
  3. Step 3: Cross multiply
    27,743,998.40x = 41,615,997.60 × 20,135,268.80
  4. Step 4: Simplify right side
    27,743,998.40x = 837,949,298,056,155
  5. Step 5: Solve for x
    x = 837,949,298,056,155/27,743,998.40
  6. Step 6: Final answer
    x = 30,202,903.20

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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.