Home / 143,420,694.80-215,131,042.20-91,764,629.60

Finding the Fourth Proportional to 143,420,694.80, 215,131,042.20 and 91,764,629.60

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Solution

The fourth proportional to 143,420,694.80, 215,131,042.20 and 91,764,629.60 is: 137,646,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,420,694.80 : 215,131,042.20 = 91,764,629.60 : x
  2. Step 2: Convert to fraction form
    143,420,694.80/215,131,042.20 = 91,764,629.60/x
  3. Step 3: Cross multiply
    143,420,694.80x = 215,131,042.20 × 91,764,629.60
  4. Step 4: Simplify right side
    143,420,694.80x = 19,741,420,402,944,968
  5. Step 5: Solve for x
    x = 19,741,420,402,944,968/143,420,694.80
  6. Step 6: Final answer
    x = 137,646,944.40

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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.