Home / 811,956,035.52-1,120,510,078.56-440,682,517.44

Finding the Fourth Proportional to 811,956,035.52, 1,120,510,078.56 and 440,682,517.44

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Solution

The fourth proportional to 811,956,035.52, 1,120,510,078.56 and 440,682,517.44 is: 608,147,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,956,035.52 : 1,120,510,078.56 = 440,682,517.44 : x
  2. Step 2: Convert to fraction form
    811,956,035.52/1,120,510,078.56 = 440,682,517.44/x
  3. Step 3: Cross multiply
    811,956,035.52x = 1,120,510,078.56 × 440,682,517.44
  4. Step 4: Simplify right side
    811,956,035.52x = 493,789,202,236,712,960
  5. Step 5: Solve for x
    x = 493,789,202,236,712,960/811,956,035.52
  6. Step 6: Final answer
    x = 608,147,708.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.