Home / 8,321,213.18-11,483,289.80-4,650,129.78

Finding the Fourth Proportional to 8,321,213.18, 11,483,289.80 and 4,650,129.78

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Solution

The fourth proportional to 8,321,213.18, 11,483,289.80 and 4,650,129.78 is: 6,417,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,213.18 : 11,483,289.80 = 4,650,129.78 : x
  2. Step 2: Convert to fraction form
    8,321,213.18/11,483,289.80 = 4,650,129.78/x
  3. Step 3: Cross multiply
    8,321,213.18x = 11,483,289.80 × 4,650,129.78
  4. Step 4: Simplify right side
    8,321,213.18x = 53,398,787,871,350.25
  5. Step 5: Solve for x
    x = 53,398,787,871,350.25/8,321,213.18
  6. Step 6: Final answer
    x = 6,417,187.82

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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.