Home / 479,131,519.70-661,203,489.66-259,114,945.70

Finding the Fourth Proportional to 479,131,519.70, 661,203,489.66 and 259,114,945.70

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Solution

The fourth proportional to 479,131,519.70, 661,203,489.66 and 259,114,945.70 is: 357,579,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,131,519.70 : 661,203,489.66 = 259,114,945.70 : x
  2. Step 2: Convert to fraction form
    479,131,519.70/661,203,489.66 = 259,114,945.70/x
  3. Step 3: Cross multiply
    479,131,519.70x = 661,203,489.66 × 259,114,945.70
  4. Step 4: Simplify right side
    479,131,519.70x = 171,327,706,319,901,408
  5. Step 5: Solve for x
    x = 171,327,706,319,901,408/479,131,519.70
  6. Step 6: Final answer
    x = 357,579,702.60

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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.