Home / 12,097,129.70-18,145,694.55-5,378,665.70

Finding the Fourth Proportional to 12,097,129.70, 18,145,694.55 and 5,378,665.70

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Solution

The fourth proportional to 12,097,129.70, 18,145,694.55 and 5,378,665.70 is: 8,067,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,129.70 : 18,145,694.55 = 5,378,665.70 : x
  2. Step 2: Convert to fraction form
    12,097,129.70/18,145,694.55 = 5,378,665.70/x
  3. Step 3: Cross multiply
    12,097,129.70x = 18,145,694.55 × 5,378,665.70
  4. Step 4: Simplify right side
    12,097,129.70x = 97,599,624,878,761.94
  5. Step 5: Solve for x
    x = 97,599,624,878,761.94/12,097,129.70
  6. Step 6: Final answer
    x = 8,067,998.55

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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.