Home / 828,840,489.75-1,242,647,820.52-501,243,172.36

Finding the Fourth Proportional to 828,840,489.75, 1,242,647,820.52 and 501,243,172.36

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Solution

The fourth proportional to 828,840,489.75, 1,242,647,820.52 and 501,243,172.36 is: 751,494,097.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,840,489.75 : 1,242,647,820.52 = 501,243,172.36 : x
  2. Step 2: Convert to fraction form
    828,840,489.75/1,242,647,820.52 = 501,243,172.36/x
  3. Step 3: Cross multiply
    828,840,489.75x = 1,242,647,820.52 × 501,243,172.36
  4. Step 4: Simplify right side
    828,840,489.75x = 622,868,735,679,324,928
  5. Step 5: Solve for x
    x = 622,868,735,679,324,928/828,840,489.75
  6. Step 6: Final answer
    x = 751,494,097.33

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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.