Home / 21,933,521.21-30,269,204.97-12,143,965.09

Finding the Fourth Proportional to 21,933,521.21, 30,269,204.97 and 12,143,965.09

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Solution

The fourth proportional to 21,933,521.21, 30,269,204.97 and 12,143,965.09 is: 16,759,195.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933,521.21 : 30,269,204.97 = 12,143,965.09 : x
  2. Step 2: Convert to fraction form
    21,933,521.21/30,269,204.97 = 12,143,965.09/x
  3. Step 3: Cross multiply
    21,933,521.21x = 30,269,204.97 × 12,143,965.09
  4. Step 4: Simplify right side
    21,933,521.21x = 367,588,168,457,734.50
  5. Step 5: Solve for x
    x = 367,588,168,457,734.50/21,933,521.21
  6. Step 6: Final answer
    x = 16,759,195.44

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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.