Home / 419,346,375.56-578,699,752.12-231,170,539.62

Finding the Fourth Proportional to 419,346,375.56, 578,699,752.12 and 231,170,539.62

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Solution

The fourth proportional to 419,346,375.56, 578,699,752.12 and 231,170,539.62 is: 319,016,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,346,375.56 : 578,699,752.12 = 231,170,539.62 : x
  2. Step 2: Convert to fraction form
    419,346,375.56/578,699,752.12 = 231,170,539.62/x
  3. Step 3: Cross multiply
    419,346,375.56x = 578,699,752.12 × 231,170,539.62
  4. Step 4: Simplify right side
    419,346,375.56x = 133,778,333,975,540,640
  5. Step 5: Solve for x
    x = 133,778,333,975,540,640/419,346,375.56
  6. Step 6: Final answer
    x = 319,016,311.51

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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.