Home / 134,530,139.70-185,651,591.09-72,650,472.80

Finding the Fourth Proportional to 134,530,139.70, 185,651,591.09 and 72,650,472.80

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Solution

The fourth proportional to 134,530,139.70, 185,651,591.09 and 72,650,472.80 is: 100,257,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,530,139.70 : 185,651,591.09 = 72,650,472.80 : x
  2. Step 2: Convert to fraction form
    134,530,139.70/185,651,591.09 = 72,650,472.80/x
  3. Step 3: Cross multiply
    134,530,139.70x = 185,651,591.09 × 72,650,472.80
  4. Step 4: Simplify right side
    134,530,139.70x = 13,487,675,867,469,258
  5. Step 5: Solve for x
    x = 13,487,675,867,469,258/134,530,139.70
  6. Step 6: Final answer
    x = 100,257,651.54

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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.