Home / 172,575,778.38-257,918,059.01-125,987,372.48

Finding the Fourth Proportional to 172,575,778.38, 257,918,059.01 and 125,987,372.48

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Solution

The fourth proportional to 172,575,778.38, 257,918,059.01 and 125,987,372.48 is: 188,290,725.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,575,778.38 : 257,918,059.01 = 125,987,372.48 : x
  2. Step 2: Convert to fraction form
    172,575,778.38/257,918,059.01 = 125,987,372.48/x
  3. Step 3: Cross multiply
    172,575,778.38x = 257,918,059.01 × 125,987,372.48
  4. Step 4: Simplify right side
    172,575,778.38x = 32,494,418,567,891,960
  5. Step 5: Solve for x
    x = 32,494,418,567,891,960/172,575,778.38
  6. Step 6: Final answer
    x = 188,290,725.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.