Home / 320,622,763.82-442,231,270.16-294,246,313.62

Finding the Fourth Proportional to 320,622,763.82, 442,231,270.16 and 294,246,313.62

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Solution

The fourth proportional to 320,622,763.82, 442,231,270.16 and 294,246,313.62 is: 405,850,537.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,622,763.82 : 442,231,270.16 = 294,246,313.62 : x
  2. Step 2: Convert to fraction form
    320,622,763.82/442,231,270.16 = 294,246,313.62/x
  3. Step 3: Cross multiply
    320,622,763.82x = 442,231,270.16 × 294,246,313.62
  4. Step 4: Simplify right side
    320,622,763.82x = 130,124,921,010,599,072
  5. Step 5: Solve for x
    x = 130,124,921,010,599,072/320,622,763.82
  6. Step 6: Final answer
    x = 405,850,537.44

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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.