Home / 7,121,249.91-9,827,327.16-3,858,087.15

Finding the Fourth Proportional to 7,121,249.91, 9,827,327.16 and 3,858,087.15

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Solution

The fourth proportional to 7,121,249.91, 9,827,327.16 and 3,858,087.15 is: 5,324,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,249.91 : 9,827,327.16 = 3,858,087.15 : x
  2. Step 2: Convert to fraction form
    7,121,249.91/9,827,327.16 = 3,858,087.15/x
  3. Step 3: Cross multiply
    7,121,249.91x = 9,827,327.16 × 3,858,087.15
  4. Step 4: Simplify right side
    7,121,249.91x = 37,914,684,634,841.99
  5. Step 5: Solve for x
    x = 37,914,684,634,841.99/7,121,249.91
  6. Step 6: Final answer
    x = 5,324,161.50

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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.