Home / 13,511,782.37-18,647,593.41-7,711,431.90

Finding the Fourth Proportional to 13,511,782.37, 18,647,593.41 and 7,711,431.90

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Solution

The fourth proportional to 13,511,782.37, 18,647,593.41 and 7,711,431.90 is: 10,642,537.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511,782.37 : 18,647,593.41 = 7,711,431.90 : x
  2. Step 2: Convert to fraction form
    13,511,782.37/18,647,593.41 = 7,711,431.90/x
  3. Step 3: Cross multiply
    13,511,782.37x = 18,647,593.41 × 7,711,431.90
  4. Step 4: Simplify right side
    13,511,782.37x = 143,799,646,680,103.78
  5. Step 5: Solve for x
    x = 143,799,646,680,103.78/13,511,782.37
  6. Step 6: Final answer
    x = 10,642,537.22

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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.