Home / 18,517,522.74-27,663,657.94-11,987,399.89

Finding the Fourth Proportional to 18,517,522.74, 27,663,657.94 and 11,987,399.89

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Solution

The fourth proportional to 18,517,522.74, 27,663,657.94 and 11,987,399.89 is: 17,908,190.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,522.74 : 27,663,657.94 = 11,987,399.89 : x
  2. Step 2: Convert to fraction form
    18,517,522.74/27,663,657.94 = 11,987,399.89/x
  3. Step 3: Cross multiply
    18,517,522.74x = 27,663,657.94 × 11,987,399.89
  4. Step 4: Simplify right side
    18,517,522.74x = 331,615,330,146,953.69
  5. Step 5: Solve for x
    x = 331,615,330,146,953.69/18,517,522.74
  6. Step 6: Final answer
    x = 17,908,190.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.