Home / 118,098,512.80-177,147,769.20-81,696,772.60

Finding the Fourth Proportional to 118,098,512.80, 177,147,769.20 and 81,696,772.60

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Solution

The fourth proportional to 118,098,512.80, 177,147,769.20 and 81,696,772.60 is: 122,545,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,512.80 : 177,147,769.20 = 81,696,772.60 : x
  2. Step 2: Convert to fraction form
    118,098,512.80/177,147,769.20 = 81,696,772.60/x
  3. Step 3: Cross multiply
    118,098,512.80x = 177,147,769.20 × 81,696,772.60
  4. Step 4: Simplify right side
    118,098,512.80x = 14,472,401,016,929,682
  5. Step 5: Solve for x
    x = 14,472,401,016,929,682/118,098,512.80
  6. Step 6: Final answer
    x = 122,545,158.90

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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.