Home / 15,449,924.79-21,311,198.11-9,166,003.20

Finding the Fourth Proportional to 15,449,924.79, 21,311,198.11 and 9,166,003.20

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Solution

The fourth proportional to 15,449,924.79, 21,311,198.11 and 9,166,003.20 is: 12,643,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,449,924.79 : 21,311,198.11 = 9,166,003.20 : x
  2. Step 2: Convert to fraction form
    15,449,924.79/21,311,198.11 = 9,166,003.20/x
  3. Step 3: Cross multiply
    15,449,924.79x = 21,311,198.11 × 9,166,003.20
  4. Step 4: Simplify right side
    15,449,924.79x = 195,338,510,089,825.38
  5. Step 5: Solve for x
    x = 195,338,510,089,825.38/15,449,924.79
  6. Step 6: Final answer
    x = 12,643,330.81

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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.