Home / 6,321,143.78-8,723,201.53-3,420,534.66

Finding the Fourth Proportional to 6,321,143.78, 8,723,201.53 and 3,420,534.66

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Solution

The fourth proportional to 6,321,143.78, 8,723,201.53 and 3,420,534.66 is: 4,720,350.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321,143.78 : 8,723,201.53 = 3,420,534.66 : x
  2. Step 2: Convert to fraction form
    6,321,143.78/8,723,201.53 = 3,420,534.66/x
  3. Step 3: Cross multiply
    6,321,143.78x = 8,723,201.53 × 3,420,534.66
  4. Step 4: Simplify right side
    6,321,143.78x = 29,838,013,179,530.03
  5. Step 5: Solve for x
    x = 29,838,013,179,530.03/6,321,143.78
  6. Step 6: Final answer
    x = 4,720,350.34

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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.