Home / 312,138,121.08-468,067,242.39-186,001,688.30

Finding the Fourth Proportional to 312,138,121.08, 468,067,242.39 and 186,001,688.30

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Solution

The fourth proportional to 312,138,121.08, 468,067,242.39 and 186,001,688.30 is: 278,919,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,138,121.08 : 468,067,242.39 = 186,001,688.30 : x
  2. Step 2: Convert to fraction form
    312,138,121.08/468,067,242.39 = 186,001,688.30/x
  3. Step 3: Cross multiply
    312,138,121.08x = 468,067,242.39 × 186,001,688.30
  4. Step 4: Simplify right side
    312,138,121.08x = 87,061,297,320,124,976
  5. Step 5: Solve for x
    x = 87,061,297,320,124,976/312,138,121.08
  6. Step 6: Final answer
    x = 278,919,143.29

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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.