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Finding the Fourth Proportional to 18,441,313.40, 27,661,710.90 and 8,343,918.20

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Solution

The fourth proportional to 18,441,313.40, 27,661,710.90 and 8,343,918.20 is: 12,515,760.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441,313.40 : 27,661,710.90 = 8,343,918.20 : x
  2. Step 2: Convert to fraction form
    18,441,313.40/27,661,710.90 = 8,343,918.20/x
  3. Step 3: Cross multiply
    18,441,313.40x = 27,661,710.90 × 8,343,918.20
  4. Step 4: Simplify right side
    18,441,313.40x = 230,807,053,021,648.38
  5. Step 5: Solve for x
    x = 230,807,053,021,648.38/18,441,313.40
  6. Step 6: Final answer
    x = 12,515,760.02

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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.