Home / 172,575,775.38-257,918,054.55-125,987,369.49

Finding the Fourth Proportional to 172,575,775.38, 257,918,054.55 and 125,987,369.49

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Solution

The fourth proportional to 172,575,775.38, 257,918,054.55 and 125,987,369.49 is: 188,290,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,575,775.38 : 257,918,054.55 = 125,987,369.49 : x
  2. Step 2: Convert to fraction form
    172,575,775.38/257,918,054.55 = 125,987,369.49/x
  3. Step 3: Cross multiply
    172,575,775.38x = 257,918,054.55 × 125,987,369.49
  4. Step 4: Simplify right side
    172,575,775.38x = 32,494,417,236,732,824
  5. Step 5: Solve for x
    x = 32,494,417,236,732,824/172,575,775.38
  6. Step 6: Final answer
    x = 188,290,721.37

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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.