Home / 219,640,671.54-329,229,373.93-72,049,691.68

Finding the Fourth Proportional to 219,640,671.54, 329,229,373.93 and 72,049,691.68

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Solution

The fourth proportional to 219,640,671.54, 329,229,373.93 and 72,049,691.68 is: 107,998,553.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,640,671.54 : 329,229,373.93 = 72,049,691.68 : x
  2. Step 2: Convert to fraction form
    219,640,671.54/329,229,373.93 = 72,049,691.68/x
  3. Step 3: Cross multiply
    219,640,671.54x = 329,229,373.93 × 72,049,691.68
  4. Step 4: Simplify right side
    219,640,671.54x = 23,720,874,883,655,932
  5. Step 5: Solve for x
    x = 23,720,874,883,655,932/219,640,671.54
  6. Step 6: Final answer
    x = 107,998,553.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.