Home / 6,480,959,018.80-8,945,162,248.09-3,940,101,086.78

Finding the Fourth Proportional to 6,480,959,018.80, 8,945,162,248.09 and 3,940,101,086.78

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Solution

The fourth proportional to 6,480,959,018.80, 8,945,162,248.09 and 3,940,101,086.78 is: 5,438,214,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,959,018.80 : 8,945,162,248.09 = 3,940,101,086.78 : x
  2. Step 2: Convert to fraction form
    6,480,959,018.80/8,945,162,248.09 = 3,940,101,086.78/x
  3. Step 3: Cross multiply
    6,480,959,018.80x = 8,945,162,248.09 × 3,940,101,086.78
  4. Step 4: Simplify right side
    6,480,959,018.80x = 35,244,843,495,135,539,200
  5. Step 5: Solve for x
    x = 35,244,843,495,135,539,200/6,480,959,018.80
  6. Step 6: Final answer
    x = 5,438,214,219.98

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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.