Home / 206,413,318.50-309,667,862.94-68,230,539.06

Finding the Fourth Proportional to 206,413,318.50, 309,667,862.94 and 68,230,539.06

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Solution

The fourth proportional to 206,413,318.50, 309,667,862.94 and 68,230,539.06 is: 102,361,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,413,318.50 : 309,667,862.94 = 68,230,539.06 : x
  2. Step 2: Convert to fraction form
    206,413,318.50/309,667,862.94 = 68,230,539.06/x
  3. Step 3: Cross multiply
    206,413,318.50x = 309,667,862.94 × 68,230,539.06
  4. Step 4: Simplify right side
    206,413,318.50x = 21,128,805,217,954,396
  5. Step 5: Solve for x
    x = 21,128,805,217,954,396/206,413,318.50
  6. Step 6: Final answer
    x = 102,361,637.18

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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.