Home / 20,582,525.66-30,832,622.19-12,380,640.21

Finding the Fourth Proportional to 20,582,525.66, 30,832,622.19 and 12,380,640.21

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Solution

The fourth proportional to 20,582,525.66, 30,832,622.19 and 12,380,640.21 is: 18,546,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582,525.66 : 30,832,622.19 = 12,380,640.21 : x
  2. Step 2: Convert to fraction form
    20,582,525.66/30,832,622.19 = 12,380,640.21/x
  3. Step 3: Cross multiply
    20,582,525.66x = 30,832,622.19 × 12,380,640.21
  4. Step 4: Simplify right side
    20,582,525.66x = 381,727,602,065,252.31
  5. Step 5: Solve for x
    x = 381,727,602,065,252.31/20,582,525.66
  6. Step 6: Final answer
    x = 18,546,198.29

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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.