Home / 717,331,204,665.64-989,921,539,270.92-392,171,197,094.92

Finding the Fourth Proportional to 717,331,204,665.64, 989,921,539,270.92 and 392,171,197,094.92

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Solution

The fourth proportional to 717,331,204,665.64, 989,921,539,270.92 and 392,171,197,094.92 is: 541,198,699,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,331,204,665.64 : 989,921,539,270.92 = 392,171,197,094.92 : x
  2. Step 2: Convert to fraction form
    717,331,204,665.64/989,921,539,270.92 = 392,171,197,094.92/x
  3. Step 3: Cross multiply
    717,331,204,665.64x = 989,921,539,270.92 × 392,171,197,094.92
  4. Step 4: Simplify right side
    717,331,204,665.64x = 388,218,715,085,922,564,571,136
  5. Step 5: Solve for x
    x = 388,218,715,085,922,564,571,136/717,331,204,665.64
  6. Step 6: Final answer
    x = 541,198,699,514.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.