Home / 15,297,450.36-21,109,680.12-8,420,589.24

Finding the Fourth Proportional to 15,297,450.36, 21,109,680.12 and 8,420,589.24

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Solution

The fourth proportional to 15,297,450.36, 21,109,680.12 and 8,420,589.24 is: 11,619,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,297,450.36 : 21,109,680.12 = 8,420,589.24 : x
  2. Step 2: Convert to fraction form
    15,297,450.36/21,109,680.12 = 8,420,589.24/x
  3. Step 3: Cross multiply
    15,297,450.36x = 21,109,680.12 × 8,420,589.24
  4. Step 4: Simplify right side
    15,297,450.36x = 177,755,945,278,313.94
  5. Step 5: Solve for x
    x = 177,755,945,278,313.94/15,297,450.36
  6. Step 6: Final answer
    x = 11,619,972.03

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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.