Home / 206,823,063.96-310,231,938.60-68,712,176.88

Finding the Fourth Proportional to 206,823,063.96, 310,231,938.60 and 68,712,176.88

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Solution

The fourth proportional to 206,823,063.96, 310,231,938.60 and 68,712,176.88 is: 103,067,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,823,063.96 : 310,231,938.60 = 68,712,176.88 : x
  2. Step 2: Convert to fraction form
    206,823,063.96/310,231,938.60 = 68,712,176.88/x
  3. Step 3: Cross multiply
    206,823,063.96x = 310,231,938.60 × 68,712,176.88
  4. Step 4: Simplify right side
    206,823,063.96x = 21,316,711,838,908,500
  5. Step 5: Solve for x
    x = 21,316,711,838,908,500/206,823,063.96
  6. Step 6: Final answer
    x = 103,067,382.48

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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.