Home / 12,633,279.80-18,949,919.70-11,310,582.20

Finding the Fourth Proportional to 12,633,279.80, 18,949,919.70 and 11,310,582.20

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Solution

The fourth proportional to 12,633,279.80, 18,949,919.70 and 11,310,582.20 is: 16,965,873.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633,279.80 : 18,949,919.70 = 11,310,582.20 : x
  2. Step 2: Convert to fraction form
    12,633,279.80/18,949,919.70 = 11,310,582.20/x
  3. Step 3: Cross multiply
    12,633,279.80x = 18,949,919.70 × 11,310,582.20
  4. Step 4: Simplify right side
    12,633,279.80x = 214,334,624,450,249.31
  5. Step 5: Solve for x
    x = 214,334,624,450,249.31/12,633,279.80
  6. Step 6: Final answer
    x = 16,965,873.30

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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.