Home / 12,961,918,039.62-17,890,324,498.97-7,880,202,175.58

Finding the Fourth Proportional to 12,961,918,039.62, 17,890,324,498.97 and 7,880,202,175.58

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Solution

The fourth proportional to 12,961,918,039.62, 17,890,324,498.97 and 7,880,202,175.58 is: 10,876,428,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,918,039.62 : 17,890,324,498.97 = 7,880,202,175.58 : x
  2. Step 2: Convert to fraction form
    12,961,918,039.62/17,890,324,498.97 = 7,880,202,175.58/x
  3. Step 3: Cross multiply
    12,961,918,039.62x = 17,890,324,498.97 × 7,880,202,175.58
  4. Step 4: Simplify right side
    12,961,918,039.62x = 140,979,374,038,552,903,680
  5. Step 5: Solve for x
    x = 140,979,374,038,552,903,680/12,961,918,039.62
  6. Step 6: Final answer
    x = 10,876,428,442.74

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1.5x scale

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.