Home / 20,310,589.72-28,028,613.81-11,608,949.16

Finding the Fourth Proportional to 20,310,589.72, 28,028,613.81 and 11,608,949.16

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Solution

The fourth proportional to 20,310,589.72, 28,028,613.81 and 11,608,949.16 is: 16,020,349.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,589.72 : 28,028,613.81 = 11,608,949.16 : x
  2. Step 2: Convert to fraction form
    20,310,589.72/28,028,613.81 = 11,608,949.16/x
  3. Step 3: Cross multiply
    20,310,589.72x = 28,028,613.81 × 11,608,949.16
  4. Step 4: Simplify right side
    20,310,589.72x = 325,382,752,716,541.56
  5. Step 5: Solve for x
    x = 325,382,752,716,541.56/20,310,589.72
  6. Step 6: Final answer
    x = 16,020,349.84

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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.