Home / 28,591,727.20-39,456,888.24-15,538,986.79

Finding the Fourth Proportional to 28,591,727.20, 39,456,888.24 and 15,538,986.79

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Solution

The fourth proportional to 28,591,727.20, 39,456,888.24 and 15,538,986.79 is: 21,443,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591,727.20 : 39,456,888.24 = 15,538,986.79 : x
  2. Step 2: Convert to fraction form
    28,591,727.20/39,456,888.24 = 15,538,986.79/x
  3. Step 3: Cross multiply
    28,591,727.20x = 39,456,888.24 × 15,538,986.79
  4. Step 4: Simplify right side
    28,591,727.20x = 613,120,065,135,866.38
  5. Step 5: Solve for x
    x = 613,120,065,135,866.38/28,591,727.20
  6. Step 6: Final answer
    x = 21,443,967.37

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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.