Home / 18,683,489.79-25,783,232.09-10,423,553.78

Finding the Fourth Proportional to 18,683,489.79, 25,783,232.09 and 10,423,553.78

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Solution

The fourth proportional to 18,683,489.79, 25,783,232.09 and 10,423,553.78 is: 14,384,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,489.79 : 25,783,232.09 = 10,423,553.78 : x
  2. Step 2: Convert to fraction form
    18,683,489.79/25,783,232.09 = 10,423,553.78/x
  3. Step 3: Cross multiply
    18,683,489.79x = 25,783,232.09 × 10,423,553.78
  4. Step 4: Simplify right side
    18,683,489.79x = 268,752,906,324,677.12
  5. Step 5: Solve for x
    x = 268,752,906,324,677.12/18,683,489.79
  6. Step 6: Final answer
    x = 14,384,513.24

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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.