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Finding the Fourth Proportional to 57,901,338,238.31, 86,802,264,978.16 and 20,123,005,371.51

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Solution

The fourth proportional to 57,901,338,238.31, 86,802,264,978.16 and 20,123,005,371.51 is: 30,167,220,612.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,901,338,238.31 : 86,802,264,978.16 = 20,123,005,371.51 : x
  2. Step 2: Convert to fraction form
    57,901,338,238.31/86,802,264,978.16 = 20,123,005,371.51/x
  3. Step 3: Cross multiply
    57,901,338,238.31x = 86,802,264,978.16 × 20,123,005,371.51
  4. Step 4: Simplify right side
    57,901,338,238.31x = 1,746,722,444,414,747,934,720
  5. Step 5: Solve for x
    x = 1,746,722,444,414,747,934,720/57,901,338,238.31
  6. Step 6: Final answer
    x = 30,167,220,612.86

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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.