Home / 20,915,253.81-28,863,750.33-11,623,215.56

Finding the Fourth Proportional to 20,915,253.81, 28,863,750.33 and 11,623,215.56

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Solution

The fourth proportional to 20,915,253.81, 28,863,750.33 and 11,623,215.56 is: 16,040,426.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,253.81 : 28,863,750.33 = 11,623,215.56 : x
  2. Step 2: Convert to fraction form
    20,915,253.81/28,863,750.33 = 11,623,215.56/x
  3. Step 3: Cross multiply
    20,915,253.81x = 28,863,750.33 × 11,623,215.56
  4. Step 4: Simplify right side
    20,915,253.81x = 335,489,591,811,292.38
  5. Step 5: Solve for x
    x = 335,489,591,811,292.38/20,915,253.81
  6. Step 6: Final answer
    x = 16,040,426.52

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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.