Home / 20,617,733.05-28,450,812.31-11,916,469.24

Finding the Fourth Proportional to 20,617,733.05, 28,450,812.31 and 11,916,469.24

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Solution

The fourth proportional to 20,617,733.05, 28,450,812.31 and 11,916,469.24 is: 16,443,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,733.05 : 28,450,812.31 = 11,916,469.24 : x
  2. Step 2: Convert to fraction form
    20,617,733.05/28,450,812.31 = 11,916,469.24/x
  3. Step 3: Cross multiply
    20,617,733.05x = 28,450,812.31 × 11,916,469.24
  4. Step 4: Simplify right side
    20,617,733.05x = 339,033,229,644,210.19
  5. Step 5: Solve for x
    x = 339,033,229,644,210.19/20,617,733.05
  6. Step 6: Final answer
    x = 16,443,768.52

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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.