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Finding the Fourth Proportional to 18,827,960.12, 28,229,047.05 and 9,588,046.77

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Solution

The fourth proportional to 18,827,960.12, 28,229,047.05 and 9,588,046.77 is: 14,375,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827,960.12 : 28,229,047.05 = 9,588,046.77 : x
  2. Step 2: Convert to fraction form
    18,827,960.12/28,229,047.05 = 9,588,046.77/x
  3. Step 3: Cross multiply
    18,827,960.12x = 28,229,047.05 × 9,588,046.77
  4. Step 4: Simplify right side
    18,827,960.12x = 270,661,423,198,845.09
  5. Step 5: Solve for x
    x = 270,661,423,198,845.09/18,827,960.12
  6. Step 6: Final answer
    x = 14,375,504.38

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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.