Home / 258,458,967.98-387,802,241.72-135,607,661.90

Finding the Fourth Proportional to 258,458,967.98, 387,802,241.72 and 135,607,661.90

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Solution

The fourth proportional to 258,458,967.98, 387,802,241.72 and 135,607,661.90 is: 203,471,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,458,967.98 : 387,802,241.72 = 135,607,661.90 : x
  2. Step 2: Convert to fraction form
    258,458,967.98/387,802,241.72 = 135,607,661.90/x
  3. Step 3: Cross multiply
    258,458,967.98x = 387,802,241.72 × 135,607,661.90
  4. Step 4: Simplify right side
    258,458,967.98x = 52,588,955,279,227,840
  5. Step 5: Solve for x
    x = 52,588,955,279,227,840/258,458,967.98
  6. Step 6: Final answer
    x = 203,471,195.80

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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.