Home / 18,217,689.20-27,322,597.20-7,982,529.20

Finding the Fourth Proportional to 18,217,689.20, 27,322,597.20 and 7,982,529.20

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Solution

The fourth proportional to 18,217,689.20, 27,322,597.20 and 7,982,529.20 is: 11,972,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217,689.20 : 27,322,597.20 = 7,982,529.20 : x
  2. Step 2: Convert to fraction form
    18,217,689.20/27,322,597.20 = 7,982,529.20/x
  3. Step 3: Cross multiply
    18,217,689.20x = 27,322,597.20 × 7,982,529.20
  4. Step 4: Simplify right side
    18,217,689.20x = 218,103,429,968,838.25
  5. Step 5: Solve for x
    x = 218,103,429,968,838.25/18,217,689.20
  6. Step 6: Final answer
    x = 11,972,068.88

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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.