Home / 681,998,939.83-941,156,766.76-380,581,091.02

Finding the Fourth Proportional to 681,998,939.83, 941,156,766.76 and 380,581,091.02

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Solution

The fourth proportional to 681,998,939.83, 941,156,766.76 and 380,581,091.02 is: 525,200,917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,998,939.83 : 941,156,766.76 = 380,581,091.02 : x
  2. Step 2: Convert to fraction form
    681,998,939.83/941,156,766.76 = 380,581,091.02/x
  3. Step 3: Cross multiply
    681,998,939.83x = 941,156,766.76 × 380,581,091.02
  4. Step 4: Simplify right side
    681,998,939.83x = 358,186,469,109,670,656
  5. Step 5: Solve for x
    x = 358,186,469,109,670,656/681,998,939.83
  6. Step 6: Final answer
    x = 525,200,917.76

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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.