Home / 8,079,887.40-11,147,331.32-6,219,871.68

Finding the Fourth Proportional to 8,079,887.40, 11,147,331.32 and 6,219,871.68

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Solution

The fourth proportional to 8,079,887.40, 11,147,331.32 and 6,219,871.68 is: 8,581,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079,887.40 : 11,147,331.32 = 6,219,871.68 : x
  2. Step 2: Convert to fraction form
    8,079,887.40/11,147,331.32 = 6,219,871.68/x
  3. Step 3: Cross multiply
    8,079,887.40x = 11,147,331.32 × 6,219,871.68
  4. Step 4: Simplify right side
    8,079,887.40x = 69,334,970,353,745.66
  5. Step 5: Solve for x
    x = 69,334,970,353,745.66/8,079,887.40
  6. Step 6: Final answer
    x = 8,581,180.27

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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.