Home / 12,676,203.92-18,981,850.80-6,990,120.56

Finding the Fourth Proportional to 12,676,203.92, 18,981,850.80 and 6,990,120.56

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Solution

The fourth proportional to 12,676,203.92, 18,981,850.80 and 6,990,120.56 is: 10,467,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676,203.92 : 18,981,850.80 = 6,990,120.56 : x
  2. Step 2: Convert to fraction form
    12,676,203.92/18,981,850.80 = 6,990,120.56/x
  3. Step 3: Cross multiply
    12,676,203.92x = 18,981,850.80 × 6,990,120.56
  4. Step 4: Simplify right side
    12,676,203.92x = 132,685,425,543,932.45
  5. Step 5: Solve for x
    x = 132,685,425,543,932.45/12,676,203.92
  6. Step 6: Final answer
    x = 10,467,283.93

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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.