Home / 10,693,891.20-16,040,836.80-7,824,109.80

Finding the Fourth Proportional to 10,693,891.20, 16,040,836.80 and 7,824,109.80

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Solution

The fourth proportional to 10,693,891.20, 16,040,836.80 and 7,824,109.80 is: 11,736,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,693,891.20 : 16,040,836.80 = 7,824,109.80 : x
  2. Step 2: Convert to fraction form
    10,693,891.20/16,040,836.80 = 7,824,109.80/x
  3. Step 3: Cross multiply
    10,693,891.20x = 16,040,836.80 × 7,824,109.80
  4. Step 4: Simplify right side
    10,693,891.20x = 125,505,268,407,080.64
  5. Step 5: Solve for x
    x = 125,505,268,407,080.64/10,693,891.20
  6. Step 6: Final answer
    x = 11,736,164.70

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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.