Home / 71,511,511.83-107,268,251.91-20,393,536.11

Finding the Fourth Proportional to 71,511,511.83, 107,268,251.91 and 20,393,536.11

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Solution

The fourth proportional to 71,511,511.83, 107,268,251.91 and 20,393,536.11 is: 30,590,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511,511.83 : 107,268,251.91 = 20,393,536.11 : x
  2. Step 2: Convert to fraction form
    71,511,511.83/107,268,251.91 = 20,393,536.11/x
  3. Step 3: Cross multiply
    71,511,511.83x = 107,268,251.91 × 20,393,536.11
  4. Step 4: Simplify right side
    71,511,511.83x = 2,187,578,968,783,161.25
  5. Step 5: Solve for x
    x = 2,187,578,968,783,161.25/71,511,511.83
  6. Step 6: Final answer
    x = 30,590,584.83

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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.