Home / 6,786,992,107.35-9,365,902,345.65-3,929,254,821.12

Finding the Fourth Proportional to 6,786,992,107.35, 9,365,902,345.65 and 3,929,254,821.12

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Solution

The fourth proportional to 6,786,992,107.35, 9,365,902,345.65 and 3,929,254,821.12 is: 5,422,286,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786,992,107.35 : 9,365,902,345.65 = 3,929,254,821.12 : x
  2. Step 2: Convert to fraction form
    6,786,992,107.35/9,365,902,345.65 = 3,929,254,821.12/x
  3. Step 3: Cross multiply
    6,786,992,107.35x = 9,365,902,345.65 × 3,929,254,821.12
  4. Step 4: Simplify right side
    6,786,992,107.35x = 36,801,016,945,784,377,344
  5. Step 5: Solve for x
    x = 36,801,016,945,784,377,344/6,786,992,107.35
  6. Step 6: Final answer
    x = 5,422,286,686.61

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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.