Home / 143,548,015.20-215,322,022.80-135,989,743.20

Finding the Fourth Proportional to 143,548,015.20, 215,322,022.80 and 135,989,743.20

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Solution

The fourth proportional to 143,548,015.20, 215,322,022.80 and 135,989,743.20 is: 203,984,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,548,015.20 : 215,322,022.80 = 135,989,743.20 : x
  2. Step 2: Convert to fraction form
    143,548,015.20/215,322,022.80 = 135,989,743.20/x
  3. Step 3: Cross multiply
    143,548,015.20x = 215,322,022.80 × 135,989,743.20
  4. Step 4: Simplify right side
    143,548,015.20x = 29,281,586,585,876,544
  5. Step 5: Solve for x
    x = 29,281,586,585,876,544/143,548,015.20
  6. Step 6: Final answer
    x = 203,984,614.80

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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.