Home / 3,929,141,936.66-5,422,188,289.11-2,144,995,389.50

Finding the Fourth Proportional to 3,929,141,936.66, 5,422,188,289.11 and 2,144,995,389.50

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Solution

The fourth proportional to 3,929,141,936.66, 5,422,188,289.11 and 2,144,995,389.50 is: 2,960,078,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,141,936.66 : 5,422,188,289.11 = 2,144,995,389.50 : x
  2. Step 2: Convert to fraction form
    3,929,141,936.66/5,422,188,289.11 = 2,144,995,389.50/x
  3. Step 3: Cross multiply
    3,929,141,936.66x = 5,422,188,289.11 × 2,144,995,389.50
  4. Step 4: Simplify right side
    3,929,141,936.66x = 11,630,568,881,141,841,920
  5. Step 5: Solve for x
    x = 11,630,568,881,141,841,920/3,929,141,936.66
  6. Step 6: Final answer
    x = 2,960,078,579.15

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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.