Home / 290,904,282.39-401,456,442.83-158,753,812.31

Finding the Fourth Proportional to 290,904,282.39, 401,456,442.83 and 158,753,812.31

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Solution

The fourth proportional to 290,904,282.39, 401,456,442.83 and 158,753,812.31 is: 219,084,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,904,282.39 : 401,456,442.83 = 158,753,812.31 : x
  2. Step 2: Convert to fraction form
    290,904,282.39/401,456,442.83 = 158,753,812.31/x
  3. Step 3: Cross multiply
    290,904,282.39x = 401,456,442.83 × 158,753,812.31
  4. Step 4: Simplify right side
    290,904,282.39x = 63,732,740,775,273,848
  5. Step 5: Solve for x
    x = 63,732,740,775,273,848/290,904,282.39
  6. Step 6: Final answer
    x = 219,084,917.73

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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.