Home / 231,150,390.66-318,987,965.43-125,303,478.66

Finding the Fourth Proportional to 231,150,390.66, 318,987,965.43 and 125,303,478.66

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Solution

The fourth proportional to 231,150,390.66, 318,987,965.43 and 125,303,478.66 is: 172,919,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,150,390.66 : 318,987,965.43 = 125,303,478.66 : x
  2. Step 2: Convert to fraction form
    231,150,390.66/318,987,965.43 = 125,303,478.66/x
  3. Step 3: Cross multiply
    231,150,390.66x = 318,987,965.43 × 125,303,478.66
  4. Step 4: Simplify right side
    231,150,390.66x = 39,970,301,719,054,824
  5. Step 5: Solve for x
    x = 39,970,301,719,054,824/231,150,390.66
  6. Step 6: Final answer
    x = 172,919,031.65

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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.