Home / 682,939,932.40-1,023,066,205.80-409,498,447.60

Finding the Fourth Proportional to 682,939,932.40, 1,023,066,205.80 and 409,498,447.60

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Solution

The fourth proportional to 682,939,932.40, 1,023,066,205.80 and 409,498,447.60 is: 613,441,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,939,932.40 : 1,023,066,205.80 = 409,498,447.60 : x
  2. Step 2: Convert to fraction form
    682,939,932.40/1,023,066,205.80 = 409,498,447.60/x
  3. Step 3: Cross multiply
    682,939,932.40x = 1,023,066,205.80 × 409,498,447.60
  4. Step 4: Simplify right side
    682,939,932.40x = 418,944,023,067,122,112
  5. Step 5: Solve for x
    x = 418,944,023,067,122,112/682,939,932.40
  6. Step 6: Final answer
    x = 613,441,978.12

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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.