Home / 20,617,717.47-28,450,790.91-11,916,453.66

Finding the Fourth Proportional to 20,617,717.47, 28,450,790.91 and 11,916,453.66

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Solution

The fourth proportional to 20,617,717.47, 28,450,790.91 and 11,916,453.66 is: 16,443,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,717.47 : 28,450,790.91 = 11,916,453.66 : x
  2. Step 2: Convert to fraction form
    20,617,717.47/28,450,790.91 = 11,916,453.66/x
  3. Step 3: Cross multiply
    20,617,717.47x = 28,450,790.91 × 11,916,453.66
  4. Step 4: Simplify right side
    20,617,717.47x = 339,032,531,469,364.25
  5. Step 5: Solve for x
    x = 339,032,531,469,364.25/20,617,717.47
  6. Step 6: Final answer
    x = 16,443,747.08

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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.