Home / 681,247,716.74-940,121,703.89-367,981,933.79

Finding the Fourth Proportional to 681,247,716.74, 940,121,703.89 and 367,981,933.79

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Solution

The fourth proportional to 681,247,716.74, 940,121,703.89 and 367,981,933.79 is: 507,814,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,247,716.74 : 940,121,703.89 = 367,981,933.79 : x
  2. Step 2: Convert to fraction form
    681,247,716.74/940,121,703.89 = 367,981,933.79/x
  3. Step 3: Cross multiply
    681,247,716.74x = 940,121,703.89 × 367,981,933.79
  4. Step 4: Simplify right side
    681,247,716.74x = 345,947,802,591,998,784
  5. Step 5: Solve for x
    x = 345,947,802,591,998,784/681,247,716.74
  6. Step 6: Final answer
    x = 507,814,990.19

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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.