Home / 28,720,091.87-39,633,672.41-15,667,347.33

Finding the Fourth Proportional to 28,720,091.87, 39,633,672.41 and 15,667,347.33

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Solution

The fourth proportional to 28,720,091.87, 39,633,672.41 and 15,667,347.33 is: 21,620,909.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720,091.87 : 39,633,672.41 = 15,667,347.33 : x
  2. Step 2: Convert to fraction form
    28,720,091.87/39,633,672.41 = 15,667,347.33/x
  3. Step 3: Cross multiply
    28,720,091.87x = 39,633,672.41 × 15,667,347.33
  4. Step 4: Simplify right side
    28,720,091.87x = 620,954,511,610,908.12
  5. Step 5: Solve for x
    x = 620,954,511,610,908.12/28,720,091.87
  6. Step 6: Final answer
    x = 21,620,909.66

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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.