Home / 490,068,017.20-734,206,230.60-398,696,906.80

Finding the Fourth Proportional to 490,068,017.20, 734,206,230.60 and 398,696,906.80

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Solution

The fourth proportional to 490,068,017.20, 734,206,230.60 and 398,696,906.80 is: 597,316,582.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,068,017.20 : 734,206,230.60 = 398,696,906.80 : x
  2. Step 2: Convert to fraction form
    490,068,017.20/734,206,230.60 = 398,696,906.80/x
  3. Step 3: Cross multiply
    490,068,017.20x = 734,206,230.60 × 398,696,906.80
  4. Step 4: Simplify right side
    490,068,017.20x = 292,725,753,093,507,520
  5. Step 5: Solve for x
    x = 292,725,753,093,507,520/490,068,017.20
  6. Step 6: Final answer
    x = 597,316,582.23

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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.