Home / 831,728,724.40-1,247,593,086.60-218,374,951.60

Finding the Fourth Proportional to 831,728,724.40, 1,247,593,086.60 and 218,374,951.60

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Solution

The fourth proportional to 831,728,724.40, 1,247,593,086.60 and 218,374,951.60 is: 327,562,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,728,724.40 : 1,247,593,086.60 = 218,374,951.60 : x
  2. Step 2: Convert to fraction form
    831,728,724.40/1,247,593,086.60 = 218,374,951.60/x
  3. Step 3: Cross multiply
    831,728,724.40x = 1,247,593,086.60 × 218,374,951.60
  4. Step 4: Simplify right side
    831,728,724.40x = 272,443,079,902,769,568
  5. Step 5: Solve for x
    x = 272,443,079,902,769,568/831,728,724.40
  6. Step 6: Final answer
    x = 327,562,427.40

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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.