Home / 40,090,728.87-55,325,241.27-21,756,014.37

Finding the Fourth Proportional to 40,090,728.87, 55,325,241.27 and 21,756,014.37

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Solution

The fourth proportional to 40,090,728.87, 55,325,241.27 and 21,756,014.37 is: 30,023,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,090,728.87 : 55,325,241.27 = 21,756,014.37 : x
  2. Step 2: Convert to fraction form
    40,090,728.87/55,325,241.27 = 21,756,014.37/x
  3. Step 3: Cross multiply
    40,090,728.87x = 55,325,241.27 × 21,756,014.37
  4. Step 4: Simplify right side
    40,090,728.87x = 1,203,656,744,093,837.25
  5. Step 5: Solve for x
    x = 1,203,656,744,093,837.25/40,090,728.87
  6. Step 6: Final answer
    x = 30,023,319.06

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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.