Home / 165,530,654.97-248,209,767.16-78,068,688.37

Finding the Fourth Proportional to 165,530,654.97, 248,209,767.16 and 78,068,688.37

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Solution

The fourth proportional to 165,530,654.97, 248,209,767.16 and 78,068,688.37 is: 117,062,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,530,654.97 : 248,209,767.16 = 78,068,688.37 : x
  2. Step 2: Convert to fraction form
    165,530,654.97/248,209,767.16 = 78,068,688.37/x
  3. Step 3: Cross multiply
    165,530,654.97x = 248,209,767.16 × 78,068,688.37
  4. Step 4: Simplify right side
    165,530,654.97x = 19,377,410,962,413,956
  5. Step 5: Solve for x
    x = 19,377,410,962,413,956/165,530,654.97
  6. Step 6: Final answer
    x = 117,062,371.11

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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.