Home / 258,064,657.60-387,096,986.40-231,787,998.40

Finding the Fourth Proportional to 258,064,657.60, 387,096,986.40 and 231,787,998.40

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Solution

The fourth proportional to 258,064,657.60, 387,096,986.40 and 231,787,998.40 is: 347,681,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,064,657.60 : 387,096,986.40 = 231,787,998.40 : x
  2. Step 2: Convert to fraction form
    258,064,657.60/387,096,986.40 = 231,787,998.40/x
  3. Step 3: Cross multiply
    258,064,657.60x = 387,096,986.40 × 231,787,998.40
  4. Step 4: Simplify right side
    258,064,657.60x = 89,724,435,664,328,016
  5. Step 5: Solve for x
    x = 89,724,435,664,328,016/258,064,657.60
  6. Step 6: Final answer
    x = 347,681,997.60

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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.