Home / 39,929,469.80-55,102,705.05-21,594,755.30

Finding the Fourth Proportional to 39,929,469.80, 55,102,705.05 and 21,594,755.30

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Solution

The fourth proportional to 39,929,469.80, 55,102,705.05 and 21,594,755.30 is: 29,800,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929,469.80 : 55,102,705.05 = 21,594,755.30 : x
  2. Step 2: Convert to fraction form
    39,929,469.80/55,102,705.05 = 21,594,755.30/x
  3. Step 3: Cross multiply
    39,929,469.80x = 55,102,705.05 × 21,594,755.30
  4. Step 4: Simplify right side
    39,929,469.80x = 1,189,929,431,647,310.75
  5. Step 5: Solve for x
    x = 1,189,929,431,647,310.75/39,929,469.80
  6. Step 6: Final answer
    x = 29,800,782.17

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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.