Home / 18,665,163.72-27,997,614.36-5,201,991.72

Finding the Fourth Proportional to 18,665,163.72, 27,997,614.36 and 5,201,991.72

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Solution

The fourth proportional to 18,665,163.72, 27,997,614.36 and 5,201,991.72 is: 7,802,951.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,163.72 : 27,997,614.36 = 5,201,991.72 : x
  2. Step 2: Convert to fraction form
    18,665,163.72/27,997,614.36 = 5,201,991.72/x
  3. Step 3: Cross multiply
    18,665,163.72x = 27,997,614.36 × 5,201,991.72
  4. Step 4: Simplify right side
    18,665,163.72x = 145,643,358,080,473.09
  5. Step 5: Solve for x
    x = 145,643,358,080,473.09/18,665,163.72
  6. Step 6: Final answer
    x = 7,802,951.01

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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.