Home / 20,372,713.95-28,114,877.13-11,205,597.27

Finding the Fourth Proportional to 20,372,713.95, 28,114,877.13 and 11,205,597.27

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Solution

The fourth proportional to 20,372,713.95, 28,114,877.13 and 11,205,597.27 is: 15,464,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,713.95 : 28,114,877.13 = 11,205,597.27 : x
  2. Step 2: Convert to fraction form
    20,372,713.95/28,114,877.13 = 11,205,597.27/x
  3. Step 3: Cross multiply
    20,372,713.95x = 28,114,877.13 × 11,205,597.27
  4. Step 4: Simplify right side
    20,372,713.95x = 315,043,990,414,313.44
  5. Step 5: Solve for x
    x = 315,043,990,414,313.44/20,372,713.95
  6. Step 6: Final answer
    x = 15,464,016.78

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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.