Home / 279,936,782.35-419,905,173.53-247,058,299.15

Finding the Fourth Proportional to 279,936,782.35, 419,905,173.53 and 247,058,299.15

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Solution

The fourth proportional to 279,936,782.35, 419,905,173.53 and 247,058,299.15 is: 370,587,448.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,782.35 : 419,905,173.53 = 247,058,299.15 : x
  2. Step 2: Convert to fraction form
    279,936,782.35/419,905,173.53 = 247,058,299.15/x
  3. Step 3: Cross multiply
    279,936,782.35x = 419,905,173.53 × 247,058,299.15
  4. Step 4: Simplify right side
    279,936,782.35x = 103,741,057,975,372,112
  5. Step 5: Solve for x
    x = 103,741,057,975,372,112/279,936,782.35
  6. Step 6: Final answer
    x = 370,587,448.73

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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.