Home / 6,940,121,247.72-9,577,367,321.85-3,969,897,498.72

Finding the Fourth Proportional to 6,940,121,247.72, 9,577,367,321.85 and 3,969,897,498.72

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Solution

The fourth proportional to 6,940,121,247.72, 9,577,367,321.85 and 3,969,897,498.72 is: 5,478,458,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940,121,247.72 : 9,577,367,321.85 = 3,969,897,498.72 : x
  2. Step 2: Convert to fraction form
    6,940,121,247.72/9,577,367,321.85 = 3,969,897,498.72/x
  3. Step 3: Cross multiply
    6,940,121,247.72x = 9,577,367,321.85 × 3,969,897,498.72
  4. Step 4: Simplify right side
    6,940,121,247.72x = 38,021,166,575,334,981,632
  5. Step 5: Solve for x
    x = 38,021,166,575,334,981,632/6,940,121,247.72
  6. Step 6: Final answer
    x = 5,478,458,548.23

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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.