Home / 3,929,534,785.56-5,422,729,927.86-2,145,388,180.26

Finding the Fourth Proportional to 3,929,534,785.56, 5,422,729,927.86 and 2,145,388,180.26

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Solution

The fourth proportional to 3,929,534,785.56, 5,422,729,927.86 and 2,145,388,180.26 is: 2,960,620,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,534,785.56 : 5,422,729,927.86 = 2,145,388,180.26 : x
  2. Step 2: Convert to fraction form
    3,929,534,785.56/5,422,729,927.86 = 2,145,388,180.26/x
  3. Step 3: Cross multiply
    3,929,534,785.56x = 5,422,729,927.86 × 2,145,388,180.26
  4. Step 4: Simplify right side
    3,929,534,785.56x = 11,633,860,691,973,005,312
  5. Step 5: Solve for x
    x = 11,633,860,691,973,005,312/3,929,534,785.56
  6. Step 6: Final answer
    x = 2,960,620,360.13

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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.