Home / 1,942,128,632.52-2,680,345,213.20-1,189,940,991.48

Finding the Fourth Proportional to 1,942,128,632.52, 2,680,345,213.20 and 1,189,940,991.48

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Solution

The fourth proportional to 1,942,128,632.52, 2,680,345,213.20 and 1,189,940,991.48 is: 1,642,245,826.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,128,632.52 : 2,680,345,213.20 = 1,189,940,991.48 : x
  2. Step 2: Convert to fraction form
    1,942,128,632.52/2,680,345,213.20 = 1,189,940,991.48/x
  3. Step 3: Cross multiply
    1,942,128,632.52x = 2,680,345,213.20 × 1,189,940,991.48
  4. Step 4: Simplify right side
    1,942,128,632.52x = 3,189,452,640,503,879,680
  5. Step 5: Solve for x
    x = 3,189,452,640,503,879,680/1,942,128,632.52
  6. Step 6: Final answer
    x = 1,642,245,826.10

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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.