Home / 636,942,161.26-878,951,909.64-354,699,160.30

Finding the Fourth Proportional to 636,942,161.26, 878,951,909.64 and 354,699,160.30

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Solution

The fourth proportional to 636,942,161.26, 878,951,909.64 and 354,699,160.30 is: 489,469,096.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,942,161.26 : 878,951,909.64 = 354,699,160.30 : x
  2. Step 2: Convert to fraction form
    636,942,161.26/878,951,909.64 = 354,699,160.30/x
  3. Step 3: Cross multiply
    636,942,161.26x = 878,951,909.64 × 354,699,160.30
  4. Step 4: Simplify right side
    636,942,161.26x = 311,763,504,293,389,504
  5. Step 5: Solve for x
    x = 311,763,504,293,389,504/636,942,161.26
  6. Step 6: Final answer
    x = 489,469,096.65

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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.