Home / 13,310,080.50-18,367,911.12-7,198,509

Finding the Fourth Proportional to 13,310,080.50, 18,367,911.12 and 7,198,509

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Solution

The fourth proportional to 13,310,080.50, 18,367,911.12 and 7,198,509 is: 9,933,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,080.50 : 18,367,911.12 = 7,198,509 : x
  2. Step 2: Convert to fraction form
    13,310,080.50/18,367,911.12 = 7,198,509/x
  3. Step 3: Cross multiply
    13,310,080.50x = 18,367,911.12 × 7,198,509
  4. Step 4: Simplify right side
    13,310,080.50x = 132,221,573,508,520.09
  5. Step 5: Solve for x
    x = 132,221,573,508,520.09/13,310,080.50
  6. Step 6: Final answer
    x = 9,933,942.44

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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.