Home / 20,736,067.70-31,104,101.55-15,585,245.30

Finding the Fourth Proportional to 20,736,067.70, 31,104,101.55 and 15,585,245.30

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Solution

The fourth proportional to 20,736,067.70, 31,104,101.55 and 15,585,245.30 is: 23,377,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,067.70 : 31,104,101.55 = 15,585,245.30 : x
  2. Step 2: Convert to fraction form
    20,736,067.70/31,104,101.55 = 15,585,245.30/x
  3. Step 3: Cross multiply
    20,736,067.70x = 31,104,101.55 × 15,585,245.30
  4. Step 4: Simplify right side
    20,736,067.70x = 484,765,052,492,860.25
  5. Step 5: Solve for x
    x = 484,765,052,492,860.25/20,736,067.70
  6. Step 6: Final answer
    x = 23,377,867.95

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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.