Home / 479,131,666.56-661,203,691.80-259,115,092.56

Finding the Fourth Proportional to 479,131,666.56, 661,203,691.80 and 259,115,092.56

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Solution

The fourth proportional to 479,131,666.56, 661,203,691.80 and 259,115,092.56 is: 357,579,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,131,666.56 : 661,203,691.80 = 259,115,092.56 : x
  2. Step 2: Convert to fraction form
    479,131,666.56/661,203,691.80 = 259,115,092.56/x
  3. Step 3: Cross multiply
    479,131,666.56x = 661,203,691.80 × 259,115,092.56
  4. Step 4: Simplify right side
    479,131,666.56x = 171,327,855,801,770,688
  5. Step 5: Solve for x
    x = 171,327,855,801,770,688/479,131,666.56
  6. Step 6: Final answer
    x = 357,579,904.98

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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.