Home / 263,518,435.38-395,197,978.43-79,236,992.19

Finding the Fourth Proportional to 263,518,435.38, 395,197,978.43 and 79,236,992.19

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Solution

The fourth proportional to 263,518,435.38, 395,197,978.43 and 79,236,992.19 is: 118,831,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,518,435.38 : 395,197,978.43 = 79,236,992.19 : x
  2. Step 2: Convert to fraction form
    263,518,435.38/395,197,978.43 = 79,236,992.19/x
  3. Step 3: Cross multiply
    263,518,435.38x = 395,197,978.43 × 79,236,992.19
  4. Step 4: Simplify right side
    263,518,435.38x = 31,314,299,129,965,512
  5. Step 5: Solve for x
    x = 31,314,299,129,965,512/263,518,435.38
  6. Step 6: Final answer
    x = 118,831,531.03

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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.