Home / 7,972,693.20-11,959,039.80-6,378,370.20

Finding the Fourth Proportional to 7,972,693.20, 11,959,039.80 and 6,378,370.20

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Solution

The fourth proportional to 7,972,693.20, 11,959,039.80 and 6,378,370.20 is: 9,567,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972,693.20 : 11,959,039.80 = 6,378,370.20 : x
  2. Step 2: Convert to fraction form
    7,972,693.20/11,959,039.80 = 6,378,370.20/x
  3. Step 3: Cross multiply
    7,972,693.20x = 11,959,039.80 × 6,378,370.20
  4. Step 4: Simplify right side
    7,972,693.20x = 76,279,183,080,933.97
  5. Step 5: Solve for x
    x = 76,279,183,080,933.97/7,972,693.20
  6. Step 6: Final answer
    x = 9,567,555.30

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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.