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Finding the Fourth Proportional to 18,441,874.70, 27,662,812.05 and 8,364,178.70

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Solution

The fourth proportional to 18,441,874.70, 27,662,812.05 and 8,364,178.70 is: 12,546,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,874.70 : 27,662,812.05 = 8,364,178.70 : x
  2. Step 2: Convert to fraction form
    18,441,874.70/27,662,812.05 = 8,364,178.70/x
  3. Step 3: Cross multiply
    18,441,874.70x = 27,662,812.05 × 8,364,178.70
  4. Step 4: Simplify right side
    18,441,874.70x = 231,376,703,330,713.34
  5. Step 5: Solve for x
    x = 231,376,703,330,713.34/18,441,874.70
  6. Step 6: Final answer
    x = 12,546,268.05

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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.