Home / 20,310,589.88-28,028,614.03-11,608,949.32

Finding the Fourth Proportional to 20,310,589.88, 28,028,614.03 and 11,608,949.32

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Solution

The fourth proportional to 20,310,589.88, 28,028,614.03 and 11,608,949.32 is: 16,020,350.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,589.88 : 28,028,614.03 = 11,608,949.32 : x
  2. Step 2: Convert to fraction form
    20,310,589.88/28,028,614.03 = 11,608,949.32/x
  3. Step 3: Cross multiply
    20,310,589.88x = 28,028,614.03 × 11,608,949.32
  4. Step 4: Simplify right side
    20,310,589.88x = 325,382,759,790,124.31
  5. Step 5: Solve for x
    x = 325,382,759,790,124.31/20,310,589.88
  6. Step 6: Final answer
    x = 16,020,350.06

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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.