Home / 217,284,544.72-299,800,184.88-137,870,651.20

Finding the Fourth Proportional to 217,284,544.72, 299,800,184.88 and 137,870,651.20

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Solution

The fourth proportional to 217,284,544.72, 299,800,184.88 and 137,870,651.20 is: 190,228,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,284,544.72 : 299,800,184.88 = 137,870,651.20 : x
  2. Step 2: Convert to fraction form
    217,284,544.72/299,800,184.88 = 137,870,651.20/x
  3. Step 3: Cross multiply
    217,284,544.72x = 299,800,184.88 × 137,870,651.20
  4. Step 4: Simplify right side
    217,284,544.72x = 41,333,646,719,285,992
  5. Step 5: Solve for x
    x = 41,333,646,719,285,992/217,284,544.72
  6. Step 6: Final answer
    x = 190,228,194.89

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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.