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Finding the Fourth Proportional to 18,630,116.40, 27,945,174.60 and 15,654,046.80

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Solution

The fourth proportional to 18,630,116.40, 27,945,174.60 and 15,654,046.80 is: 23,481,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630,116.40 : 27,945,174.60 = 15,654,046.80 : x
  2. Step 2: Convert to fraction form
    18,630,116.40/27,945,174.60 = 15,654,046.80/x
  3. Step 3: Cross multiply
    18,630,116.40x = 27,945,174.60 × 15,654,046.80
  4. Step 4: Simplify right side
    18,630,116.40x = 437,455,071,022,571.31
  5. Step 5: Solve for x
    x = 437,455,071,022,571.31/18,630,116.40
  6. Step 6: Final answer
    x = 23,481,070.20

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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.