Home / 28,647,208.32-42,972,239.70-8,179,964.16

Finding the Fourth Proportional to 28,647,208.32, 42,972,239.70 and 8,179,964.16

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Solution

The fourth proportional to 28,647,208.32, 42,972,239.70 and 8,179,964.16 is: 12,270,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647,208.32 : 42,972,239.70 = 8,179,964.16 : x
  2. Step 2: Convert to fraction form
    28,647,208.32/42,972,239.70 = 8,179,964.16/x
  3. Step 3: Cross multiply
    28,647,208.32x = 42,972,239.70 × 8,179,964.16
  4. Step 4: Simplify right side
    28,647,208.32x = 351,511,380,620,929.19
  5. Step 5: Solve for x
    x = 351,511,380,620,929.19/28,647,208.32
  6. Step 6: Final answer
    x = 12,270,353.77

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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.