Home / 394,220,339,548.89-591,324,047,327.01-125,605,670,763.57

Finding the Fourth Proportional to 394,220,339,548.89, 591,324,047,327.01 and 125,605,670,763.57

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Solution

The fourth proportional to 394,220,339,548.89, 591,324,047,327.01 and 125,605,670,763.57 is: 188,406,447,237.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,220,339,548.89 : 591,324,047,327.01 = 125,605,670,763.57 : x
  2. Step 2: Convert to fraction form
    394,220,339,548.89/591,324,047,327.01 = 125,605,670,763.57/x
  3. Step 3: Cross multiply
    394,220,339,548.89x = 591,324,047,327.01 × 125,605,670,763.57
  4. Step 4: Simplify right side
    394,220,339,548.89x = 74,273,653,603,138,109,702,144
  5. Step 5: Solve for x
    x = 74,273,653,603,138,109,702,144/394,220,339,548.89
  6. Step 6: Final answer
    x = 188,406,447,237.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.