Home / 256,020,462.42-353,308,229.10-138,545,791.44

Finding the Fourth Proportional to 256,020,462.42, 353,308,229.10 and 138,545,791.44

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Solution

The fourth proportional to 256,020,462.42, 353,308,229.10 and 138,545,791.44 is: 191,193,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,020,462.42 : 353,308,229.10 = 138,545,791.44 : x
  2. Step 2: Convert to fraction form
    256,020,462.42/353,308,229.10 = 138,545,791.44/x
  3. Step 3: Cross multiply
    256,020,462.42x = 353,308,229.10 × 138,545,791.44
  4. Step 4: Simplify right side
    256,020,462.42x = 48,949,368,222,924,344
  5. Step 5: Solve for x
    x = 48,949,368,222,924,344/256,020,462.42
  6. Step 6: Final answer
    x = 191,193,187.30

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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.