Home / 18,457,253.78-27,691,795.17-12,923,553.69

Finding the Fourth Proportional to 18,457,253.78, 27,691,795.17 and 12,923,553.69

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Solution

The fourth proportional to 18,457,253.78, 27,691,795.17 and 12,923,553.69 is: 19,389,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457,253.78 : 27,691,795.17 = 12,923,553.69 : x
  2. Step 2: Convert to fraction form
    18,457,253.78/27,691,795.17 = 12,923,553.69/x
  3. Step 3: Cross multiply
    18,457,253.78x = 27,691,795.17 × 12,923,553.69
  4. Step 4: Simplify right side
    18,457,253.78x = 357,876,401,651,977.69
  5. Step 5: Solve for x
    x = 357,876,401,651,977.69/18,457,253.78
  6. Step 6: Final answer
    x = 19,389,471.80

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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.