Home / 20,552,321.86-30,819,268.63-12,247,042.35

Finding the Fourth Proportional to 20,552,321.86, 30,819,268.63 and 12,247,042.35

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Solution

The fourth proportional to 20,552,321.86, 30,819,268.63 and 12,247,042.35 is: 18,365,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552,321.86 : 30,819,268.63 = 12,247,042.35 : x
  2. Step 2: Convert to fraction form
    20,552,321.86/30,819,268.63 = 12,247,042.35/x
  3. Step 3: Cross multiply
    20,552,321.86x = 30,819,268.63 × 12,247,042.35
  4. Step 4: Simplify right side
    20,552,321.86x = 377,444,888,107,636.44
  5. Step 5: Solve for x
    x = 377,444,888,107,636.44/20,552,321.86
  6. Step 6: Final answer
    x = 18,365,072.85

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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.