Home / 717,331,204,664.64-989,921,539,269.54-392,171,197,093.92

Finding the Fourth Proportional to 717,331,204,664.64, 989,921,539,269.54 and 392,171,197,093.92

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Solution

The fourth proportional to 717,331,204,664.64, 989,921,539,269.54 and 392,171,197,093.92 is: 541,198,699,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,331,204,664.64 : 989,921,539,269.54 = 392,171,197,093.92 : x
  2. Step 2: Convert to fraction form
    717,331,204,664.64/989,921,539,269.54 = 392,171,197,093.92/x
  3. Step 3: Cross multiply
    717,331,204,664.64x = 989,921,539,269.54 × 392,171,197,093.92
  4. Step 4: Simplify right side
    717,331,204,664.64x = 388,218,715,084,391,408,730,112
  5. Step 5: Solve for x
    x = 388,218,715,084,391,408,730,112/717,331,204,664.64
  6. Step 6: Final answer
    x = 541,198,699,512.71

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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.