Home / 20,629,540.40-30,945,338.51-7,851,035.48

Finding the Fourth Proportional to 20,629,540.40, 30,945,338.51 and 7,851,035.48

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Solution

The fourth proportional to 20,629,540.40, 30,945,338.51 and 7,851,035.48 is: 11,776,944.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629,540.40 : 30,945,338.51 = 7,851,035.48 : x
  2. Step 2: Convert to fraction form
    20,629,540.40/30,945,338.51 = 7,851,035.48/x
  3. Step 3: Cross multiply
    20,629,540.40x = 30,945,338.51 × 7,851,035.48
  4. Step 4: Simplify right side
    20,629,540.40x = 242,952,950,388,638.44
  5. Step 5: Solve for x
    x = 242,952,950,388,638.44/20,629,540.40
  6. Step 6: Final answer
    x = 11,776,944.41

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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.