Home / 12,161,540.20-16,782,924.78-6,654,915.72

Finding the Fourth Proportional to 12,161,540.20, 16,782,924.78 and 6,654,915.72

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Solution

The fourth proportional to 12,161,540.20, 16,782,924.78 and 6,654,915.72 is: 9,183,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,540.20 : 16,782,924.78 = 6,654,915.72 : x
  2. Step 2: Convert to fraction form
    12,161,540.20/16,782,924.78 = 6,654,915.72/x
  3. Step 3: Cross multiply
    12,161,540.20x = 16,782,924.78 × 6,654,915.72
  4. Step 4: Simplify right side
    12,161,540.20x = 111,688,949,945,999.55
  5. Step 5: Solve for x
    x = 111,688,949,945,999.55/12,161,540.20
  6. Step 6: Final answer
    x = 9,183,783.31

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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.