Home / 20,268,286.53-27,970,262.40-10,975,872.61

Finding the Fourth Proportional to 20,268,286.53, 27,970,262.40 and 10,975,872.61

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Solution

The fourth proportional to 20,268,286.53, 27,970,262.40 and 10,975,872.61 is: 15,146,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268,286.53 : 27,970,262.40 = 10,975,872.61 : x
  2. Step 2: Convert to fraction form
    20,268,286.53/27,970,262.40 = 10,975,872.61/x
  3. Step 3: Cross multiply
    20,268,286.53x = 27,970,262.40 × 10,975,872.61
  4. Step 4: Simplify right side
    20,268,286.53x = 306,998,036,970,672.81
  5. Step 5: Solve for x
    x = 306,998,036,970,672.81/20,268,286.53
  6. Step 6: Final answer
    x = 15,146,718.82

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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.