Home / 3,767,978-5,199,809.64-2,158,449.68

Finding the Fourth Proportional to 3,767,978, 5,199,809.64 and 2,158,449.68

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Solution

The fourth proportional to 3,767,978, 5,199,809.64 and 2,158,449.68 is: 2,978,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,767,978 : 5,199,809.64 = 2,158,449.68 : x
  2. Step 2: Convert to fraction form
    3,767,978/5,199,809.64 = 2,158,449.68/x
  3. Step 3: Cross multiply
    3,767,978x = 5,199,809.64 × 2,158,449.68
  4. Step 4: Simplify right side
    3,767,978x = 11,223,527,453,518.92
  5. Step 5: Solve for x
    x = 11,223,527,453,518.92/3,767,978
  6. Step 6: Final answer
    x = 2,978,660.56

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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.