Home / 28,117,540.67-38,805,795.86-15,728,322.33

Finding the Fourth Proportional to 28,117,540.67, 38,805,795.86 and 15,728,322.33

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Solution

The fourth proportional to 28,117,540.67, 38,805,795.86 and 15,728,322.33 is: 21,707,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117,540.67 : 38,805,795.86 = 15,728,322.33 : x
  2. Step 2: Convert to fraction form
    28,117,540.67/38,805,795.86 = 15,728,322.33/x
  3. Step 3: Cross multiply
    28,117,540.67x = 38,805,795.86 × 15,728,322.33
  4. Step 4: Simplify right side
    28,117,540.67x = 610,350,065,479,617.88
  5. Step 5: Solve for x
    x = 610,350,065,479,617.88/28,117,540.67
  6. Step 6: Final answer
    x = 21,707,092.83

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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.