Home / 221,296,731.54-305,383,411.17-122,175,677.76

Finding the Fourth Proportional to 221,296,731.54, 305,383,411.17 and 122,175,677.76

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Solution

The fourth proportional to 221,296,731.54, 305,383,411.17 and 122,175,677.76 is: 168,599,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,296,731.54 : 305,383,411.17 = 122,175,677.76 : x
  2. Step 2: Convert to fraction form
    221,296,731.54/305,383,411.17 = 122,175,677.76/x
  3. Step 3: Cross multiply
    221,296,731.54x = 305,383,411.17 × 122,175,677.76
  4. Step 4: Simplify right side
    221,296,731.54x = 37,310,425,236,355,512
  5. Step 5: Solve for x
    x = 37,310,425,236,355,512/221,296,731.54
  6. Step 6: Final answer
    x = 168,599,079.51

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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.