Home / 206,310,815,464.54-309,607,583,019.30-72,005,305,538.68

Finding the Fourth Proportional to 206,310,815,464.54, 309,607,583,019.30 and 72,005,305,538.68

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Solution

The fourth proportional to 206,310,815,464.54, 309,607,583,019.30 and 72,005,305,538.68 is: 108,057,294,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,310,815,464.54 : 309,607,583,019.30 = 72,005,305,538.68 : x
  2. Step 2: Convert to fraction form
    206,310,815,464.54/309,607,583,019.30 = 72,005,305,538.68/x
  3. Step 3: Cross multiply
    206,310,815,464.54x = 309,607,583,019.30 × 72,005,305,538.68
  4. Step 4: Simplify right side
    206,310,815,464.54x = 22,293,388,612,396,925,321,216
  5. Step 5: Solve for x
    x = 22,293,388,612,396,925,321,216/206,310,815,464.54
  6. Step 6: Final answer
    x = 108,057,294,825.77

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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.