Home / 28,471,636.42-39,290,662.62-15,418,596.64

Finding the Fourth Proportional to 28,471,636.42, 39,290,662.62 and 15,418,596.64

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Solution

The fourth proportional to 28,471,636.42, 39,290,662.62 and 15,418,596.64 is: 21,277,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,636.42 : 39,290,662.62 = 15,418,596.64 : x
  2. Step 2: Convert to fraction form
    28,471,636.42/39,290,662.62 = 15,418,596.64/x
  3. Step 3: Cross multiply
    28,471,636.42x = 39,290,662.62 × 15,418,596.64
  4. Step 4: Simplify right side
    28,471,636.42x = 605,806,878,656,105.62
  5. Step 5: Solve for x
    x = 605,806,878,656,105.62/28,471,636.42
  6. Step 6: Final answer
    x = 21,277,557.42

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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.