Home / 80,340,474.11-109,386,622.53-80,085,382.43

Finding the Fourth Proportional to 80,340,474.11, 109,386,622.53 and 80,085,382.43

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Solution

The fourth proportional to 80,340,474.11, 109,386,622.53 and 80,085,382.43 is: 109,039,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,340,474.11 : 109,386,622.53 = 80,085,382.43 : x
  2. Step 2: Convert to fraction form
    80,340,474.11/109,386,622.53 = 80,085,382.43/x
  3. Step 3: Cross multiply
    80,340,474.11x = 109,386,622.53 × 80,085,382.43
  4. Step 4: Simplify right side
    80,340,474.11x = 8,760,269,497,494,171
  5. Step 5: Solve for x
    x = 8,760,269,497,494,171/80,340,474.11
  6. Step 6: Final answer
    x = 109,039,305.47

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.