Home / 13,990,672,531.42-19,304,970,640.40-7,968,410,196.75

Finding the Fourth Proportional to 13,990,672,531.42, 19,304,970,640.40 and 7,968,410,196.75

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Solution

The fourth proportional to 13,990,672,531.42, 19,304,970,640.40 and 7,968,410,196.75 is: 10,995,177,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,672,531.42 : 19,304,970,640.40 = 7,968,410,196.75 : x
  2. Step 2: Convert to fraction form
    13,990,672,531.42/19,304,970,640.40 = 7,968,410,196.75/x
  3. Step 3: Cross multiply
    13,990,672,531.42x = 19,304,970,640.40 × 7,968,410,196.75
  4. Step 4: Simplify right side
    13,990,672,531.42x = 153,829,924,898,946,646,016
  5. Step 5: Solve for x
    x = 153,829,924,898,946,646,016/13,990,672,531.42
  6. Step 6: Final answer
    x = 10,995,177,290.69

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Double scale
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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.