Home / 18,836,719.20-28,192,093.20-13,168,015.20

Finding the Fourth Proportional to 18,836,719.20, 28,192,093.20 and 13,168,015.20

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Solution

The fourth proportional to 18,836,719.20, 28,192,093.20 and 13,168,015.20 is: 19,707,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836,719.20 : 28,192,093.20 = 13,168,015.20 : x
  2. Step 2: Convert to fraction form
    18,836,719.20/28,192,093.20 = 13,168,015.20/x
  3. Step 3: Cross multiply
    18,836,719.20x = 28,192,093.20 × 13,168,015.20
  4. Step 4: Simplify right side
    18,836,719.20x = 371,233,911,777,416.62
  5. Step 5: Solve for x
    x = 371,233,911,777,416.62/18,836,719.20
  6. Step 6: Final answer
    x = 19,707,992.03

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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.