Home / 20,511,736.41-30,756,245.88-8,389,712.19

Finding the Fourth Proportional to 20,511,736.41, 30,756,245.88 and 8,389,712.19

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Solution

The fourth proportional to 20,511,736.41, 30,756,245.88 and 8,389,712.19 is: 12,579,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,736.41 : 30,756,245.88 = 8,389,712.19 : x
  2. Step 2: Convert to fraction form
    20,511,736.41/30,756,245.88 = 8,389,712.19/x
  3. Step 3: Cross multiply
    20,511,736.41x = 30,756,245.88 × 8,389,712.19
  4. Step 4: Simplify right side
    20,511,736.41x = 258,036,050,978,073.25
  5. Step 5: Solve for x
    x = 258,036,050,978,073.25/20,511,736.41
  6. Step 6: Final answer
    x = 12,579,922.33

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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.