Home / 13,310,115.21-18,367,958.93-7,198,543.71

Finding the Fourth Proportional to 13,310,115.21, 18,367,958.93 and 7,198,543.71

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Solution

The fourth proportional to 13,310,115.21, 18,367,958.93 and 7,198,543.71 is: 9,933,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,115.21 : 18,367,958.93 = 7,198,543.71 : x
  2. Step 2: Convert to fraction form
    13,310,115.21/18,367,958.93 = 7,198,543.71/x
  3. Step 3: Cross multiply
    13,310,115.21x = 18,367,958.93 × 7,198,543.71
  4. Step 4: Simplify right side
    13,310,115.21x = 132,222,555,185,097.11
  5. Step 5: Solve for x
    x = 132,222,555,185,097.11/13,310,115.21
  6. Step 6: Final answer
    x = 9,933,990.28

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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.