Home / 20,783,705.96-28,682,513.89-11,491,104.08

Finding the Fourth Proportional to 20,783,705.96, 28,682,513.89 and 11,491,104.08

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Solution

The fourth proportional to 20,783,705.96, 28,682,513.89 and 11,491,104.08 is: 15,858,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,705.96 : 28,682,513.89 = 11,491,104.08 : x
  2. Step 2: Convert to fraction form
    20,783,705.96/28,682,513.89 = 11,491,104.08/x
  3. Step 3: Cross multiply
    20,783,705.96x = 28,682,513.89 × 11,491,104.08
  4. Step 4: Simplify right side
    20,783,705.96x = 329,593,752,213,895.31
  5. Step 5: Solve for x
    x = 329,593,752,213,895.31/20,783,705.96
  6. Step 6: Final answer
    x = 15,858,276.33

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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.