Home / 13,930,321.17-20,841,418.81-12,211,536

Finding the Fourth Proportional to 13,930,321.17, 20,841,418.81 and 12,211,536

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Solution

The fourth proportional to 13,930,321.17, 20,841,418.81 and 12,211,536 is: 18,269,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930,321.17 : 20,841,418.81 = 12,211,536 : x
  2. Step 2: Convert to fraction form
    13,930,321.17/20,841,418.81 = 12,211,536/x
  3. Step 3: Cross multiply
    13,930,321.17x = 20,841,418.81 × 12,211,536
  4. Step 4: Simplify right side
    13,930,321.17x = 254,505,736,028,334.47
  5. Step 5: Solve for x
    x = 254,505,736,028,334.47/13,930,321.17
  6. Step 6: Final answer
    x = 18,269,911.58

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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.