Home / 206,823,081.96-310,231,965.60-68,712,194.88

Finding the Fourth Proportional to 206,823,081.96, 310,231,965.60 and 68,712,194.88

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Solution

The fourth proportional to 206,823,081.96, 310,231,965.60 and 68,712,194.88 is: 103,067,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,823,081.96 : 310,231,965.60 = 68,712,194.88 : x
  2. Step 2: Convert to fraction form
    206,823,081.96/310,231,965.60 = 68,712,194.88/x
  3. Step 3: Cross multiply
    206,823,081.96x = 310,231,965.60 × 68,712,194.88
  4. Step 4: Simplify right side
    206,823,081.96x = 21,316,719,278,312,656
  5. Step 5: Solve for x
    x = 21,316,719,278,312,656/206,823,081.96
  6. Step 6: Final answer
    x = 103,067,409.48

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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.