Home / 12,623,828.49-18,894,020.16-11,489,438.10

Finding the Fourth Proportional to 12,623,828.49, 18,894,020.16 and 11,489,438.10

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Solution

The fourth proportional to 12,623,828.49, 18,894,020.16 and 11,489,438.10 is: 17,196,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623,828.49 : 18,894,020.16 = 11,489,438.10 : x
  2. Step 2: Convert to fraction form
    12,623,828.49/18,894,020.16 = 11,489,438.10/x
  3. Step 3: Cross multiply
    12,623,828.49x = 18,894,020.16 × 11,489,438.10
  4. Step 4: Simplify right side
    12,623,828.49x = 217,081,675,088,472.09
  5. Step 5: Solve for x
    x = 217,081,675,088,472.09/12,623,828.49
  6. Step 6: Final answer
    x = 17,196,183.81

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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.