Home / 206,296,805.52-309,483,479.16-68,131,986.48

Finding the Fourth Proportional to 206,296,805.52, 309,483,479.16 and 68,131,986.48

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Solution

The fourth proportional to 206,296,805.52, 309,483,479.16 and 68,131,986.48 is: 102,210,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,296,805.52 : 309,483,479.16 = 68,131,986.48 : x
  2. Step 2: Convert to fraction form
    206,296,805.52/309,483,479.16 = 68,131,986.48/x
  3. Step 3: Cross multiply
    206,296,805.52x = 309,483,479.16 × 68,131,986.48
  4. Step 4: Simplify right side
    206,296,805.52x = 21,085,724,217,912,484
  5. Step 5: Solve for x
    x = 21,085,724,217,912,484/206,296,805.52
  6. Step 6: Final answer
    x = 102,210,619.14

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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.