Home / 3,929,141,901.78-5,422,188,240.99-2,144,995,354.71

Finding the Fourth Proportional to 3,929,141,901.78, 5,422,188,240.99 and 2,144,995,354.71

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Solution

The fourth proportional to 3,929,141,901.78, 5,422,188,240.99 and 2,144,995,354.71 is: 2,960,078,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,141,901.78 : 5,422,188,240.99 = 2,144,995,354.71 : x
  2. Step 2: Convert to fraction form
    3,929,141,901.78/5,422,188,240.99 = 2,144,995,354.71/x
  3. Step 3: Cross multiply
    3,929,141,901.78x = 5,422,188,240.99 × 2,144,995,354.71
  4. Step 4: Simplify right side
    3,929,141,901.78x = 11,630,568,589,286,735,872
  5. Step 5: Solve for x
    x = 11,630,568,589,286,735,872/3,929,141,901.78
  6. Step 6: Final answer
    x = 2,960,078,531.15

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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.