Home / 13,515,467.22-18,651,196.35-7,320,359.88

Finding the Fourth Proportional to 13,515,467.22, 18,651,196.35 and 7,320,359.88

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Solution

The fourth proportional to 13,515,467.22, 18,651,196.35 and 7,320,359.88 is: 10,102,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,467.22 : 18,651,196.35 = 7,320,359.88 : x
  2. Step 2: Convert to fraction form
    13,515,467.22/18,651,196.35 = 7,320,359.88/x
  3. Step 3: Cross multiply
    13,515,467.22x = 18,651,196.35 × 7,320,359.88
  4. Step 4: Simplify right side
    13,515,467.22x = 136,533,469,474,542.45
  5. Step 5: Solve for x
    x = 136,533,469,474,542.45/13,515,467.22
  6. Step 6: Final answer
    x = 10,102,016.25

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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.