Home / 213,297,429.69-319,665,226.25-90,323,583.05

Finding the Fourth Proportional to 213,297,429.69, 319,665,226.25 and 90,323,583.05

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Solution

The fourth proportional to 213,297,429.69, 319,665,226.25 and 90,323,583.05 is: 135,366,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,297,429.69 : 319,665,226.25 = 90,323,583.05 : x
  2. Step 2: Convert to fraction form
    213,297,429.69/319,665,226.25 = 90,323,583.05/x
  3. Step 3: Cross multiply
    213,297,429.69x = 319,665,226.25 × 90,323,583.05
  4. Step 4: Simplify right side
    213,297,429.69x = 28,873,308,609,338,972
  5. Step 5: Solve for x
    x = 28,873,308,609,338,972/213,297,429.69
  6. Step 6: Final answer
    x = 135,366,416.05

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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.