Home / 39,410,241.78-54,385,042.56-21,768,828.18

Finding the Fourth Proportional to 39,410,241.78, 54,385,042.56 and 21,768,828.18

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Solution

The fourth proportional to 39,410,241.78, 54,385,042.56 and 21,768,828.18 is: 30,040,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,410,241.78 : 54,385,042.56 = 21,768,828.18 : x
  2. Step 2: Convert to fraction form
    39,410,241.78/54,385,042.56 = 21,768,828.18/x
  3. Step 3: Cross multiply
    39,410,241.78x = 54,385,042.56 × 21,768,828.18
  4. Step 4: Simplify right side
    39,410,241.78x = 1,183,898,647,050,627.50
  5. Step 5: Solve for x
    x = 1,183,898,647,050,627.50/39,410,241.78
  6. Step 6: Final answer
    x = 30,040,380.21

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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.