Home / 20,926,995.38-28,879,879.32-11,507,297.09

Finding the Fourth Proportional to 20,926,995.38, 28,879,879.32 and 11,507,297.09

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Solution

The fourth proportional to 20,926,995.38, 28,879,879.32 and 11,507,297.09 is: 15,880,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926,995.38 : 28,879,879.32 = 11,507,297.09 : x
  2. Step 2: Convert to fraction form
    20,926,995.38/28,879,879.32 = 11,507,297.09/x
  3. Step 3: Cross multiply
    20,926,995.38x = 28,879,879.32 × 11,507,297.09
  4. Step 4: Simplify right side
    20,926,995.38x = 332,329,351,114,187.81
  5. Step 5: Solve for x
    x = 332,329,351,114,187.81/20,926,995.38
  6. Step 6: Final answer
    x = 15,880,414.04

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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.