Home / 20,414,719.80-30,622,079.70-19,936,422.90

Finding the Fourth Proportional to 20,414,719.80, 30,622,079.70 and 19,936,422.90

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Solution

The fourth proportional to 20,414,719.80, 30,622,079.70 and 19,936,422.90 is: 29,904,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,719.80 : 30,622,079.70 = 19,936,422.90 : x
  2. Step 2: Convert to fraction form
    20,414,719.80/30,622,079.70 = 19,936,422.90/x
  3. Step 3: Cross multiply
    20,414,719.80x = 30,622,079.70 × 19,936,422.90
  4. Step 4: Simplify right side
    20,414,719.80x = 610,494,730,976,705.12
  5. Step 5: Solve for x
    x = 610,494,730,976,705.12/20,414,719.80
  6. Step 6: Final answer
    x = 29,904,634.35

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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.