Home / 20,992,107.60-28,969,668.36-11,824,203.60

Finding the Fourth Proportional to 20,992,107.60, 28,969,668.36 and 11,824,203.60

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Solution

The fourth proportional to 20,992,107.60, 28,969,668.36 and 11,824,203.60 is: 16,317,716.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992,107.60 : 28,969,668.36 = 11,824,203.60 : x
  2. Step 2: Convert to fraction form
    20,992,107.60/28,969,668.36 = 11,824,203.60/x
  3. Step 3: Cross multiply
    20,992,107.60x = 28,969,668.36 × 11,824,203.60
  4. Step 4: Simplify right side
    20,992,107.60x = 342,543,256,913,118.06
  5. Step 5: Solve for x
    x = 342,543,256,913,118.06/20,992,107.60
  6. Step 6: Final answer
    x = 16,317,716.33

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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.