Home / 947,137,906,870.80-1,420,790,379,867.40-267,222,212,818.15

Finding the Fourth Proportional to 947,137,906,870.80, 1,420,790,379,867.40 and 267,222,212,818.15

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Solution

The fourth proportional to 947,137,906,870.80, 1,420,790,379,867.40 and 267,222,212,818.15 is: 400,856,883,147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,137,906,870.80 : 1,420,790,379,867.40 = 267,222,212,818.15 : x
  2. Step 2: Convert to fraction form
    947,137,906,870.80/1,420,790,379,867.40 = 267,222,212,818.15/x
  3. Step 3: Cross multiply
    947,137,906,870.80x = 1,420,790,379,867.40 × 267,222,212,818.15
  4. Step 4: Simplify right side
    947,137,906,870.80x = 379,666,749,258,906,504,003,584
  5. Step 5: Solve for x
    x = 379,666,749,258,906,504,003,584/947,137,906,870.80
  6. Step 6: Final answer
    x = 400,856,883,147.32

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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.