Home / 6,251,057.78-9,378,000.75-1,991,468.66

Finding the Fourth Proportional to 6,251,057.78, 9,378,000.75 and 1,991,468.66

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Solution

The fourth proportional to 6,251,057.78, 9,378,000.75 and 1,991,468.66 is: 2,987,653.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,251,057.78 : 9,378,000.75 = 1,991,468.66 : x
  2. Step 2: Convert to fraction form
    6,251,057.78/9,378,000.75 = 1,991,468.66/x
  3. Step 3: Cross multiply
    6,251,057.78x = 9,378,000.75 × 1,991,468.66
  4. Step 4: Simplify right side
    6,251,057.78x = 18,675,994,587,081.50
  5. Step 5: Solve for x
    x = 18,675,994,587,081.50/6,251,057.78
  6. Step 6: Final answer
    x = 2,987,653.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.