Home / 681,816,521.22-940,906,393.83-368,550,740.04

Finding the Fourth Proportional to 681,816,521.22, 940,906,393.83 and 368,550,740.04

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Solution

The fourth proportional to 681,816,521.22, 940,906,393.83 and 368,550,740.04 is: 508,599,802.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,816,521.22 : 940,906,393.83 = 368,550,740.04 : x
  2. Step 2: Convert to fraction form
    681,816,521.22/940,906,393.83 = 368,550,740.04/x
  3. Step 3: Cross multiply
    681,816,521.22x = 940,906,393.83 × 368,550,740.04
  4. Step 4: Simplify right side
    681,816,521.22x = 346,771,747,754,414,208
  5. Step 5: Solve for x
    x = 346,771,747,754,414,208/681,816,521.22
  6. Step 6: Final answer
    x = 508,599,802.09

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1.5x scale

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.