Home / 404,665,010.82-607,019,590.44-128,296,236.96

Finding the Fourth Proportional to 404,665,010.82, 607,019,590.44 and 128,296,236.96

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Solution

The fourth proportional to 404,665,010.82, 607,019,590.44 and 128,296,236.96 is: 192,451,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,665,010.82 : 607,019,590.44 = 128,296,236.96 : x
  2. Step 2: Convert to fraction form
    404,665,010.82/607,019,590.44 = 128,296,236.96/x
  3. Step 3: Cross multiply
    404,665,010.82x = 607,019,590.44 × 128,296,236.96
  4. Step 4: Simplify right side
    404,665,010.82x = 77,878,329,214,452,400
  5. Step 5: Solve for x
    x = 77,878,329,214,452,400/404,665,010.82
  6. Step 6: Final answer
    x = 192,451,353.92

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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.