Home / 12,129,993.92-18,194,939.04-3,154,520

Finding the Fourth Proportional to 12,129,993.92, 18,194,939.04 and 3,154,520

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Solution

The fourth proportional to 12,129,993.92, 18,194,939.04 and 3,154,520 is: 4,731,766.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,993.92 : 18,194,939.04 = 3,154,520 : x
  2. Step 2: Convert to fraction form
    12,129,993.92/18,194,939.04 = 3,154,520/x
  3. Step 3: Cross multiply
    12,129,993.92x = 18,194,939.04 × 3,154,520
  4. Step 4: Simplify right side
    12,129,993.92x = 57,396,299,100,460.80
  5. Step 5: Solve for x
    x = 57,396,299,100,460.80/12,129,993.92
  6. Step 6: Final answer
    x = 4,731,766.52

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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.