Home / 11,889,969,337.20-17,834,954,005.80-7,971,761,132.40

Finding the Fourth Proportional to 11,889,969,337.20, 17,834,954,005.80 and 7,971,761,132.40

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Solution

The fourth proportional to 11,889,969,337.20, 17,834,954,005.80 and 7,971,761,132.40 is: 11,957,641,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889,969,337.20 : 17,834,954,005.80 = 7,971,761,132.40 : x
  2. Step 2: Convert to fraction form
    11,889,969,337.20/17,834,954,005.80 = 7,971,761,132.40/x
  3. Step 3: Cross multiply
    11,889,969,337.20x = 17,834,954,005.80 × 7,971,761,132.40
  4. Step 4: Simplify right side
    11,889,969,337.20x = 142,175,993,141,578,104,832
  5. Step 5: Solve for x
    x = 142,175,993,141,578,104,832/11,889,969,337.20
  6. Step 6: Final answer
    x = 11,957,641,698.60

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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.