Home / 213,297,435.18-319,665,234.48-90,323,588.52

Finding the Fourth Proportional to 213,297,435.18, 319,665,234.48 and 90,323,588.52

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Solution

The fourth proportional to 213,297,435.18, 319,665,234.48 and 90,323,588.52 is: 135,366,424.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,297,435.18 : 319,665,234.48 = 90,323,588.52 : x
  2. Step 2: Convert to fraction form
    213,297,435.18/319,665,234.48 = 90,323,588.52/x
  3. Step 3: Cross multiply
    213,297,435.18x = 319,665,234.48 × 90,323,588.52
  4. Step 4: Simplify right side
    213,297,435.18x = 28,873,311,103,320,836
  5. Step 5: Solve for x
    x = 28,873,311,103,320,836/213,297,435.18
  6. Step 6: Final answer
    x = 135,366,424.26

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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.