Home / 72,504,768.87-100,058,707.62-39,467,173.05

Finding the Fourth Proportional to 72,504,768.87, 100,058,707.62 and 39,467,173.05

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Solution

The fourth proportional to 72,504,768.87, 100,058,707.62 and 39,467,173.05 is: 54,465,856.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504,768.87 : 100,058,707.62 = 39,467,173.05 : x
  2. Step 2: Convert to fraction form
    72,504,768.87/100,058,707.62 = 39,467,173.05/x
  3. Step 3: Cross multiply
    72,504,768.87x = 100,058,707.62 × 39,467,173.05
  4. Step 4: Simplify right side
    72,504,768.87x = 3,949,034,328,797,893.50
  5. Step 5: Solve for x
    x = 3,949,034,328,797,893.50/72,504,768.87
  6. Step 6: Final answer
    x = 54,465,856.39

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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.