Home / 39,310,218.72-54,247,364.64-21,906,180.48

Finding the Fourth Proportional to 39,310,218.72, 54,247,364.64 and 21,906,180.48

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Solution

The fourth proportional to 39,310,218.72, 54,247,364.64 and 21,906,180.48 is: 30,230,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,310,218.72 : 54,247,364.64 = 21,906,180.48 : x
  2. Step 2: Convert to fraction form
    39,310,218.72/54,247,364.64 = 21,906,180.48/x
  3. Step 3: Cross multiply
    39,310,218.72x = 54,247,364.64 × 21,906,180.48
  4. Step 4: Simplify right side
    39,310,218.72x = 1,188,352,560,368,210.25
  5. Step 5: Solve for x
    x = 1,188,352,560,368,210.25/39,310,218.72
  6. Step 6: Final answer
    x = 30,230,118.25

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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.