Home / 2,659,838,121.90-3,990,135,096.45-819,398,889.90

Finding the Fourth Proportional to 2,659,838,121.90, 3,990,135,096.45 and 819,398,889.90

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Solution

The fourth proportional to 2,659,838,121.90, 3,990,135,096.45 and 819,398,889.90 is: 1,229,214,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,838,121.90 : 3,990,135,096.45 = 819,398,889.90 : x
  2. Step 2: Convert to fraction form
    2,659,838,121.90/3,990,135,096.45 = 819,398,889.90/x
  3. Step 3: Cross multiply
    2,659,838,121.90x = 3,990,135,096.45 × 819,398,889.90
  4. Step 4: Simplify right side
    2,659,838,121.90x = 3,269,512,268,582,159,360
  5. Step 5: Solve for x
    x = 3,269,512,268,582,159,360/2,659,838,121.90
  6. Step 6: Final answer
    x = 1,229,214,756.21

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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.