Home / 12,288,000.80-18,432,001.20-6,979,584.80

Finding the Fourth Proportional to 12,288,000.80, 18,432,001.20 and 6,979,584.80

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Solution

The fourth proportional to 12,288,000.80, 18,432,001.20 and 6,979,584.80 is: 10,469,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,000.80 : 18,432,001.20 = 6,979,584.80 : x
  2. Step 2: Convert to fraction form
    12,288,000.80/18,432,001.20 = 6,979,584.80/x
  3. Step 3: Cross multiply
    12,288,000.80x = 18,432,001.20 × 6,979,584.80
  4. Step 4: Simplify right side
    12,288,000.80x = 128,647,715,409,101.75
  5. Step 5: Solve for x
    x = 128,647,715,409,101.75/12,288,000.80
  6. Step 6: Final answer
    x = 10,469,377.20

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Similar ratio
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1.5x scale

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.