Home / 1,489,431,078.80-2,235,422,076.60-661,658,577.20

Finding the Fourth Proportional to 1,489,431,078.80, 2,235,422,076.60 and 661,658,577.20

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Solution

The fourth proportional to 1,489,431,078.80, 2,235,422,076.60 and 661,658,577.20 is: 993,054,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,431,078.80 : 2,235,422,076.60 = 661,658,577.20 : x
  2. Step 2: Convert to fraction form
    1,489,431,078.80/2,235,422,076.60 = 661,658,577.20/x
  3. Step 3: Cross multiply
    1,489,431,078.80x = 2,235,422,076.60 × 661,658,577.20
  4. Step 4: Simplify right side
    1,489,431,078.80x = 1,479,086,190,644,625,408
  5. Step 5: Solve for x
    x = 1,479,086,190,644,625,408/1,489,431,078.80
  6. Step 6: Final answer
    x = 993,054,470.06

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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.