Home / 20,728,040.08-28,604,733.48-11,561,273.68

Finding the Fourth Proportional to 20,728,040.08, 28,604,733.48 and 11,561,273.68

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Solution

The fourth proportional to 20,728,040.08, 28,604,733.48 and 11,561,273.68 is: 15,954,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,040.08 : 28,604,733.48 = 11,561,273.68 : x
  2. Step 2: Convert to fraction form
    20,728,040.08/28,604,733.48 = 11,561,273.68/x
  3. Step 3: Cross multiply
    20,728,040.08x = 28,604,733.48 × 11,561,273.68
  4. Step 4: Simplify right side
    20,728,040.08x = 330,707,152,305,738.81
  5. Step 5: Solve for x
    x = 330,707,152,305,738.81/20,728,040.08
  6. Step 6: Final answer
    x = 15,954,578.97

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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.