Home / 6,940,121,246.72-9,577,367,320.47-3,969,897,497.72

Finding the Fourth Proportional to 6,940,121,246.72, 9,577,367,320.47 and 3,969,897,497.72

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Solution

The fourth proportional to 6,940,121,246.72, 9,577,367,320.47 and 3,969,897,497.72 is: 5,478,458,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940,121,246.72 : 9,577,367,320.47 = 3,969,897,497.72 : x
  2. Step 2: Convert to fraction form
    6,940,121,246.72/9,577,367,320.47 = 3,969,897,497.72/x
  3. Step 3: Cross multiply
    6,940,121,246.72x = 9,577,367,320.47 × 3,969,897,497.72
  4. Step 4: Simplify right side
    6,940,121,246.72x = 38,021,166,560,275,603,456
  5. Step 5: Solve for x
    x = 38,021,166,560,275,603,456/6,940,121,246.72
  6. Step 6: Final answer
    x = 5,478,458,546.85

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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.