Home / 68,143,321.80-102,214,982.70-40,933,542.60

Finding the Fourth Proportional to 68,143,321.80, 102,214,982.70 and 40,933,542.60

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Solution

The fourth proportional to 68,143,321.80, 102,214,982.70 and 40,933,542.60 is: 61,400,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,143,321.80 : 102,214,982.70 = 40,933,542.60 : x
  2. Step 2: Convert to fraction form
    68,143,321.80/102,214,982.70 = 40,933,542.60/x
  3. Step 3: Cross multiply
    68,143,321.80x = 102,214,982.70 × 40,933,542.60
  4. Step 4: Simplify right side
    68,143,321.80x = 4,184,021,348,708,713.50
  5. Step 5: Solve for x
    x = 4,184,021,348,708,713.50/68,143,321.80
  6. Step 6: Final answer
    x = 61,400,313.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.