Home / 18,518,409.72-27,777,617.61-7,729,825.23

Finding the Fourth Proportional to 18,518,409.72, 27,777,617.61 and 7,729,825.23

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Solution

The fourth proportional to 18,518,409.72, 27,777,617.61 and 7,729,825.23 is: 11,594,739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518,409.72 : 27,777,617.61 = 7,729,825.23 : x
  2. Step 2: Convert to fraction form
    18,518,409.72/27,777,617.61 = 7,729,825.23/x
  3. Step 3: Cross multiply
    18,518,409.72x = 27,777,617.61 × 7,729,825.23
  4. Step 4: Simplify right side
    18,518,409.72x = 214,716,129,431,070.31
  5. Step 5: Solve for x
    x = 214,716,129,431,070.31/18,518,409.72
  6. Step 6: Final answer
    x = 11,594,739.11

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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.