Home / 118,450,976.43-163,503,441.68-81,403,893.75

Finding the Fourth Proportional to 118,450,976.43, 163,503,441.68 and 81,403,893.75

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Solution

The fourth proportional to 118,450,976.43, 163,503,441.68 and 81,403,893.75 is: 112,365,614.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,450,976.43 : 163,503,441.68 = 81,403,893.75 : x
  2. Step 2: Convert to fraction form
    118,450,976.43/163,503,441.68 = 81,403,893.75/x
  3. Step 3: Cross multiply
    118,450,976.43x = 163,503,441.68 × 81,403,893.75
  4. Step 4: Simplify right side
    118,450,976.43x = 13,309,816,794,278,042
  5. Step 5: Solve for x
    x = 13,309,816,794,278,042/118,450,976.43
  6. Step 6: Final answer
    x = 112,365,614.83

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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.