Home / 118,206,601.20-177,309,901.80-72,856,969.20

Finding the Fourth Proportional to 118,206,601.20, 177,309,901.80 and 72,856,969.20

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Solution

The fourth proportional to 118,206,601.20, 177,309,901.80 and 72,856,969.20 is: 109,285,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,206,601.20 : 177,309,901.80 = 72,856,969.20 : x
  2. Step 2: Convert to fraction form
    118,206,601.20/177,309,901.80 = 72,856,969.20/x
  3. Step 3: Cross multiply
    118,206,601.20x = 177,309,901.80 × 72,856,969.20
  4. Step 4: Simplify right side
    118,206,601.20x = 12,918,262,054,297,626
  5. Step 5: Solve for x
    x = 12,918,262,054,297,626/118,206,601.20
  6. Step 6: Final answer
    x = 109,285,453.80

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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.