Home / 400,109,855.67-552,158,138.54-219,053,816.73

Finding the Fourth Proportional to 400,109,855.67, 552,158,138.54 and 219,053,816.73

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Solution

The fourth proportional to 400,109,855.67, 552,158,138.54 and 219,053,816.73 is: 302,297,846.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,109,855.67 : 552,158,138.54 = 219,053,816.73 : x
  2. Step 2: Convert to fraction form
    400,109,855.67/552,158,138.54 = 219,053,816.73/x
  3. Step 3: Cross multiply
    400,109,855.67x = 552,158,138.54 × 219,053,816.73
  4. Step 4: Simplify right side
    400,109,855.67x = 120,952,347,686,266,736
  5. Step 5: Solve for x
    x = 120,952,347,686,266,736/400,109,855.67
  6. Step 6: Final answer
    x = 302,297,846.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.