Home / 20,883,286.40-31,324,929.60-15,214,582.40

Finding the Fourth Proportional to 20,883,286.40, 31,324,929.60 and 15,214,582.40

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Solution

The fourth proportional to 20,883,286.40, 31,324,929.60 and 15,214,582.40 is: 22,821,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,286.40 : 31,324,929.60 = 15,214,582.40 : x
  2. Step 2: Convert to fraction form
    20,883,286.40/31,324,929.60 = 15,214,582.40/x
  3. Step 3: Cross multiply
    20,883,286.40x = 31,324,929.60 × 15,214,582.40
  4. Step 4: Simplify right side
    20,883,286.40x = 476,595,722,573,399.06
  5. Step 5: Solve for x
    x = 476,595,722,573,399.06/20,883,286.40
  6. Step 6: Final answer
    x = 22,821,873.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.