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Finding the Fourth Proportional to 395,592,099, 545,917,101.48 and 221,751,843

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Solution

The fourth proportional to 395,592,099, 545,917,101.48 and 221,751,843 is: 306,017,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,592,099 : 545,917,101.48 = 221,751,843 : x
  2. Step 2: Convert to fraction form
    395,592,099/545,917,101.48 = 221,751,843/x
  3. Step 3: Cross multiply
    395,592,099x = 545,917,101.48 × 221,751,843
  4. Step 4: Simplify right side
    395,592,099x = 121,058,123,378,408,032
  5. Step 5: Solve for x
    x = 121,058,123,378,408,032/395,592,099
  6. Step 6: Final answer
    x = 306,017,546.06

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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.