Home / 258,458,965.98-387,802,238.72-135,607,659.90

Finding the Fourth Proportional to 258,458,965.98, 387,802,238.72 and 135,607,659.90

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Solution

The fourth proportional to 258,458,965.98, 387,802,238.72 and 135,607,659.90 is: 203,471,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,458,965.98 : 387,802,238.72 = 135,607,659.90 : x
  2. Step 2: Convert to fraction form
    258,458,965.98/387,802,238.72 = 135,607,659.90/x
  3. Step 3: Cross multiply
    258,458,965.98x = 387,802,238.72 × 135,607,659.90
  4. Step 4: Simplify right side
    258,458,965.98x = 52,588,954,096,122,328
  5. Step 5: Solve for x
    x = 52,588,954,096,122,328/258,458,965.98
  6. Step 6: Final answer
    x = 203,471,192.79

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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.