Home / 7,028,186.47-10,543,132.79-1,979,496.97

Finding the Fourth Proportional to 7,028,186.47, 10,543,132.79 and 1,979,496.97

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Solution

The fourth proportional to 7,028,186.47, 10,543,132.79 and 1,979,496.97 is: 2,969,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028,186.47 : 10,543,132.79 = 1,979,496.97 : x
  2. Step 2: Convert to fraction form
    7,028,186.47/10,543,132.79 = 1,979,496.97/x
  3. Step 3: Cross multiply
    7,028,186.47x = 10,543,132.79 × 1,979,496.97
  4. Step 4: Simplify right side
    7,028,186.47x = 20,870,099,412,112.64
  5. Step 5: Solve for x
    x = 20,870,099,412,112.64/7,028,186.47
  6. Step 6: Final answer
    x = 2,969,485.73

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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.