Home / 28,036,949.22-38,690,907.03-15,646,910.78

Finding the Fourth Proportional to 28,036,949.22, 38,690,907.03 and 15,646,910.78

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Solution

The fourth proportional to 28,036,949.22, 38,690,907.03 and 15,646,910.78 is: 21,592,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036,949.22 : 38,690,907.03 = 15,646,910.78 : x
  2. Step 2: Convert to fraction form
    28,036,949.22/38,690,907.03 = 15,646,910.78/x
  3. Step 3: Cross multiply
    28,036,949.22x = 38,690,907.03 × 15,646,910.78
  4. Step 4: Simplify right side
    28,036,949.22x = 605,393,170,392,412.12
  5. Step 5: Solve for x
    x = 605,393,170,392,412.12/28,036,949.22
  6. Step 6: Final answer
    x = 21,592,690.62

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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.