Home / 87,689,196.80-131,533,795.20-84,162,003.20

Finding the Fourth Proportional to 87,689,196.80, 131,533,795.20 and 84,162,003.20

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Solution

The fourth proportional to 87,689,196.80, 131,533,795.20 and 84,162,003.20 is: 126,243,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689,196.80 : 131,533,795.20 = 84,162,003.20 : x
  2. Step 2: Convert to fraction form
    87,689,196.80/131,533,795.20 = 84,162,003.20/x
  3. Step 3: Cross multiply
    87,689,196.80x = 131,533,795.20 × 84,162,003.20
  4. Step 4: Simplify right side
    87,689,196.80x = 11,070,147,692,530,546
  5. Step 5: Solve for x
    x = 11,070,147,692,530,546/87,689,196.80
  6. Step 6: Final answer
    x = 126,243,004.80

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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.