Home / 213,297,436.68-319,665,236.73-90,323,590.02

Finding the Fourth Proportional to 213,297,436.68, 319,665,236.73 and 90,323,590.02

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Solution

The fourth proportional to 213,297,436.68, 319,665,236.73 and 90,323,590.02 is: 135,366,426.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,297,436.68 : 319,665,236.73 = 90,323,590.02 : x
  2. Step 2: Convert to fraction form
    213,297,436.68/319,665,236.73 = 90,323,590.02/x
  3. Step 3: Cross multiply
    213,297,436.68x = 319,665,236.73 × 90,323,590.02
  4. Step 4: Simplify right side
    213,297,436.68x = 28,873,311,786,046,764
  5. Step 5: Solve for x
    x = 28,873,311,786,046,764/213,297,436.68
  6. Step 6: Final answer
    x = 135,366,426.50

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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.