Home / 313,145,971,987.72-469,526,723,978.45-121,694,466,163.37

Finding the Fourth Proportional to 313,145,971,987.72, 469,526,723,978.45 and 121,694,466,163.37

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Solution

The fourth proportional to 313,145,971,987.72, 469,526,723,978.45 and 121,694,466,163.37 is: 182,466,993,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,145,971,987.72 : 469,526,723,978.45 = 121,694,466,163.37 : x
  2. Step 2: Convert to fraction form
    313,145,971,987.72/469,526,723,978.45 = 121,694,466,163.37/x
  3. Step 3: Cross multiply
    313,145,971,987.72x = 469,526,723,978.45 × 121,694,466,163.37
  4. Step 4: Simplify right side
    313,145,971,987.72x = 57,138,804,023,993,449,840,640
  5. Step 5: Solve for x
    x = 57,138,804,023,993,449,840,640/313,145,971,987.72
  6. Step 6: Final answer
    x = 182,466,993,464.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.