Home / 14,175,289.20-21,278,680.20-8,790,020.40

Finding the Fourth Proportional to 14,175,289.20, 21,278,680.20 and 8,790,020.40

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Solution

The fourth proportional to 14,175,289.20, 21,278,680.20 and 8,790,020.40 is: 13,194,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175,289.20 : 21,278,680.20 = 8,790,020.40 : x
  2. Step 2: Convert to fraction form
    14,175,289.20/21,278,680.20 = 8,790,020.40/x
  3. Step 3: Cross multiply
    14,175,289.20x = 21,278,680.20 × 8,790,020.40
  4. Step 4: Simplify right side
    14,175,289.20x = 187,040,033,043,076.09
  5. Step 5: Solve for x
    x = 187,040,033,043,076.09/14,175,289.20
  6. Step 6: Final answer
    x = 13,194,794.86

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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.