Home / 351,981,511.11-485,711,857.76-195,348,724.20

Finding the Fourth Proportional to 351,981,511.11, 485,711,857.76 and 195,348,724.20

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Solution

The fourth proportional to 351,981,511.11, 485,711,857.76 and 195,348,724.20 is: 269,568,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,981,511.11 : 485,711,857.76 = 195,348,724.20 : x
  2. Step 2: Convert to fraction form
    351,981,511.11/485,711,857.76 = 195,348,724.20/x
  3. Step 3: Cross multiply
    351,981,511.11x = 485,711,857.76 × 195,348,724.20
  4. Step 4: Simplify right side
    351,981,511.11x = 94,883,191,741,251,120
  5. Step 5: Solve for x
    x = 94,883,191,741,251,120/351,981,511.11
  6. Step 6: Final answer
    x = 269,568,681.16

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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.