Home / 118,098,132.30-177,147,198.45-81,109,838.70

Finding the Fourth Proportional to 118,098,132.30, 177,147,198.45 and 81,109,838.70

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Solution

The fourth proportional to 118,098,132.30, 177,147,198.45 and 81,109,838.70 is: 121,664,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,132.30 : 177,147,198.45 = 81,109,838.70 : x
  2. Step 2: Convert to fraction form
    118,098,132.30/177,147,198.45 = 81,109,838.70/x
  3. Step 3: Cross multiply
    118,098,132.30x = 177,147,198.45 × 81,109,838.70
  4. Step 4: Simplify right side
    118,098,132.30x = 14,368,380,692,436,390
  5. Step 5: Solve for x
    x = 14,368,380,692,436,390/118,098,132.30
  6. Step 6: Final answer
    x = 121,664,758.05

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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.