Home / 131,098,910.40-196,648,365.60-82,631,491.20

Finding the Fourth Proportional to 131,098,910.40, 196,648,365.60 and 82,631,491.20

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Solution

The fourth proportional to 131,098,910.40, 196,648,365.60 and 82,631,491.20 is: 123,947,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,098,910.40 : 196,648,365.60 = 82,631,491.20 : x
  2. Step 2: Convert to fraction form
    131,098,910.40/196,648,365.60 = 82,631,491.20/x
  3. Step 3: Cross multiply
    131,098,910.40x = 196,648,365.60 × 82,631,491.20
  4. Step 4: Simplify right side
    131,098,910.40x = 16,249,347,691,570,782
  5. Step 5: Solve for x
    x = 16,249,347,691,570,782/131,098,910.40
  6. Step 6: Final answer
    x = 123,947,236.80

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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.