Home / 6,659,905.05-9,189,684.09-3,905,553.51

Finding the Fourth Proportional to 6,659,905.05, 9,189,684.09 and 3,905,553.51

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Solution

The fourth proportional to 6,659,905.05, 9,189,684.09 and 3,905,553.51 is: 5,389,086.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,905.05 : 9,189,684.09 = 3,905,553.51 : x
  2. Step 2: Convert to fraction form
    6,659,905.05/9,189,684.09 = 3,905,553.51/x
  3. Step 3: Cross multiply
    6,659,905.05x = 9,189,684.09 × 3,905,553.51
  4. Step 4: Simplify right side
    6,659,905.05x = 35,890,802,953,490.66
  5. Step 5: Solve for x
    x = 35,890,802,953,490.66/6,659,905.05
  6. Step 6: Final answer
    x = 5,389,086.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.