Home / 6,428,215.20-8,871,192.38-3,527,710.54

Finding the Fourth Proportional to 6,428,215.20, 8,871,192.38 and 3,527,710.54

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Solution

The fourth proportional to 6,428,215.20, 8,871,192.38 and 3,527,710.54 is: 4,868,380.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428,215.20 : 8,871,192.38 = 3,527,710.54 : x
  2. Step 2: Convert to fraction form
    6,428,215.20/8,871,192.38 = 3,527,710.54/x
  3. Step 3: Cross multiply
    6,428,215.20x = 8,871,192.38 × 3,527,710.54
  4. Step 4: Simplify right side
    6,428,215.20x = 31,294,998,861,293.69
  5. Step 5: Solve for x
    x = 31,294,998,861,293.69/6,428,215.20
  6. Step 6: Final answer
    x = 4,868,380.71

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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.