Home / 143,738,380.80-215,616,902.40-75,713,932.80

Finding the Fourth Proportional to 143,738,380.80, 215,616,902.40 and 75,713,932.80

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Solution

The fourth proportional to 143,738,380.80, 215,616,902.40 and 75,713,932.80 is: 113,575,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,738,380.80 : 215,616,902.40 = 75,713,932.80 : x
  2. Step 2: Convert to fraction form
    143,738,380.80/215,616,902.40 = 75,713,932.80/x
  3. Step 3: Cross multiply
    143,738,380.80x = 215,616,902.40 × 75,713,932.80
  4. Step 4: Simplify right side
    143,738,380.80x = 16,325,203,658,857,758
  5. Step 5: Solve for x
    x = 16,325,203,658,857,758/143,738,380.80
  6. Step 6: Final answer
    x = 113,575,814.39

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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.