Home / 13,471,286.20-20,206,929.30-7,788,585.40

Finding the Fourth Proportional to 13,471,286.20, 20,206,929.30 and 7,788,585.40

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Solution

The fourth proportional to 13,471,286.20, 20,206,929.30 and 7,788,585.40 is: 11,682,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471,286.20 : 20,206,929.30 = 7,788,585.40 : x
  2. Step 2: Convert to fraction form
    13,471,286.20/20,206,929.30 = 7,788,585.40/x
  3. Step 3: Cross multiply
    13,471,286.20x = 20,206,929.30 × 7,788,585.40
  4. Step 4: Simplify right side
    13,471,286.20x = 157,383,394,524,812.22
  5. Step 5: Solve for x
    x = 157,383,394,524,812.22/13,471,286.20
  6. Step 6: Final answer
    x = 11,682,878.10

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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.