Home / 21,747,936.34-30,013,229.49-13,490,659.11

Finding the Fourth Proportional to 21,747,936.34, 30,013,229.49 and 13,490,659.11

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Solution

The fourth proportional to 21,747,936.34, 30,013,229.49 and 13,490,659.11 is: 18,617,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747,936.34 : 30,013,229.49 = 13,490,659.11 : x
  2. Step 2: Convert to fraction form
    21,747,936.34/30,013,229.49 = 13,490,659.11/x
  3. Step 3: Cross multiply
    21,747,936.34x = 30,013,229.49 × 13,490,659.11
  4. Step 4: Simplify right side
    21,747,936.34x = 404,898,247,839,789.12
  5. Step 5: Solve for x
    x = 404,898,247,839,789.12/21,747,936.34
  6. Step 6: Final answer
    x = 18,617,777.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.