Home / 13,310,079-18,367,909.05-7,198,507.50

Finding the Fourth Proportional to 13,310,079, 18,367,909.05 and 7,198,507.50

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Solution

The fourth proportional to 13,310,079, 18,367,909.05 and 7,198,507.50 is: 9,933,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,079 : 18,367,909.05 = 7,198,507.50 : x
  2. Step 2: Convert to fraction form
    13,310,079/18,367,909.05 = 7,198,507.50/x
  3. Step 3: Cross multiply
    13,310,079x = 18,367,909.05 × 7,198,507.50
  4. Step 4: Simplify right side
    13,310,079x = 132,221,531,055,742.88
  5. Step 5: Solve for x
    x = 132,221,531,055,742.88/13,310,079
  6. Step 6: Final answer
    x = 9,933,940.37

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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.