Home / 20,504,467.71-28,295,854.74-11,212,067.52

Finding the Fourth Proportional to 20,504,467.71, 28,295,854.74 and 11,212,067.52

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Solution

The fourth proportional to 20,504,467.71, 28,295,854.74 and 11,212,067.52 is: 15,472,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504,467.71 : 28,295,854.74 = 11,212,067.52 : x
  2. Step 2: Convert to fraction form
    20,504,467.71/28,295,854.74 = 11,212,067.52/x
  3. Step 3: Cross multiply
    20,504,467.71x = 28,295,854.74 × 11,212,067.52
  4. Step 4: Simplify right side
    20,504,467.71x = 317,255,033,880,992
  5. Step 5: Solve for x
    x = 317,255,033,880,992/20,504,467.71
  6. Step 6: Final answer
    x = 15,472,483.28

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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.