Home / 20,647,481.48-28,485,460.37-11,822,216.58

Finding the Fourth Proportional to 20,647,481.48, 28,485,460.37 and 11,822,216.58

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Solution

The fourth proportional to 20,647,481.48, 28,485,460.37 and 11,822,216.58 is: 16,310,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647,481.48 : 28,485,460.37 = 11,822,216.58 : x
  2. Step 2: Convert to fraction form
    20,647,481.48/28,485,460.37 = 11,822,216.58/x
  3. Step 3: Cross multiply
    20,647,481.48x = 28,485,460.37 × 11,822,216.58
  4. Step 4: Simplify right side
    20,647,481.48x = 336,761,281,816,035.81
  5. Step 5: Solve for x
    x = 336,761,281,816,035.81/20,647,481.48
  6. Step 6: Final answer
    x = 16,310,041.60

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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.