Home / 20,555,418,439.71-30,827,146,087.33-7,961,467,962.44

Finding the Fourth Proportional to 20,555,418,439.71, 30,827,146,087.33 and 7,961,467,962.44

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Solution

The fourth proportional to 20,555,418,439.71, 30,827,146,087.33 and 7,961,467,962.44 is: 11,939,885,177.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555,418,439.71 : 30,827,146,087.33 = 7,961,467,962.44 : x
  2. Step 2: Convert to fraction form
    20,555,418,439.71/30,827,146,087.33 = 7,961,467,962.44/x
  3. Step 3: Cross multiply
    20,555,418,439.71x = 30,827,146,087.33 × 7,961,467,962.44
  4. Step 4: Simplify right side
    20,555,418,439.71x = 245,429,335,947,788,582,912
  5. Step 5: Solve for x
    x = 245,429,335,947,788,582,912/20,555,418,439.71
  6. Step 6: Final answer
    x = 11,939,885,177.61

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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.