Home / 188,392,376.80-282,378,613.20-73,338,680.80

Finding the Fourth Proportional to 188,392,376.80, 282,378,613.20 and 73,338,680.80

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Solution

The fourth proportional to 188,392,376.80, 282,378,613.20 and 73,338,680.80 is: 109,926,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,392,376.80 : 282,378,613.20 = 73,338,680.80 : x
  2. Step 2: Convert to fraction form
    188,392,376.80/282,378,613.20 = 73,338,680.80/x
  3. Step 3: Cross multiply
    188,392,376.80x = 282,378,613.20 × 73,338,680.80
  4. Step 4: Simplify right side
    188,392,376.80x = 20,709,274,978,221,464
  5. Step 5: Solve for x
    x = 20,709,274,978,221,464/188,392,376.80
  6. Step 6: Final answer
    x = 109,926,289.64

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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.