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Finding the Fourth Proportional to 18,492,003.70, 27,738,005.55 and 8,394,624.70

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Solution

The fourth proportional to 18,492,003.70, 27,738,005.55 and 8,394,624.70 is: 12,591,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,492,003.70 : 27,738,005.55 = 8,394,624.70 : x
  2. Step 2: Convert to fraction form
    18,492,003.70/27,738,005.55 = 8,394,624.70/x
  3. Step 3: Cross multiply
    18,492,003.70x = 27,738,005.55 × 8,394,624.70
  4. Step 4: Simplify right side
    18,492,003.70x = 232,850,146,518,767.06
  5. Step 5: Solve for x
    x = 232,850,146,518,767.06/18,492,003.70
  6. Step 6: Final answer
    x = 12,591,937.05

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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.