Home / 28,647,209.32-42,972,241.20-8,179,965.16

Finding the Fourth Proportional to 28,647,209.32, 42,972,241.20 and 8,179,965.16

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Solution

The fourth proportional to 28,647,209.32, 42,972,241.20 and 8,179,965.16 is: 12,270,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647,209.32 : 42,972,241.20 = 8,179,965.16 : x
  2. Step 2: Convert to fraction form
    28,647,209.32/42,972,241.20 = 8,179,965.16/x
  3. Step 3: Cross multiply
    28,647,209.32x = 42,972,241.20 × 8,179,965.16
  4. Step 4: Simplify right side
    28,647,209.32x = 351,511,435,863,116.62
  5. Step 5: Solve for x
    x = 351,511,435,863,116.62/28,647,209.32
  6. Step 6: Final answer
    x = 12,270,355.27

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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.