Home / 439,964,137.20-659,946,205.80-198,099,433.20

Finding the Fourth Proportional to 439,964,137.20, 659,946,205.80 and 198,099,433.20

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Solution

The fourth proportional to 439,964,137.20, 659,946,205.80 and 198,099,433.20 is: 297,149,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,964,137.20 : 659,946,205.80 = 198,099,433.20 : x
  2. Step 2: Convert to fraction form
    439,964,137.20/659,946,205.80 = 198,099,433.20/x
  3. Step 3: Cross multiply
    439,964,137.20x = 659,946,205.80 × 198,099,433.20
  4. Step 4: Simplify right side
    439,964,137.20x = 130,734,969,311,470,528
  5. Step 5: Solve for x
    x = 130,734,969,311,470,528/439,964,137.20
  6. Step 6: Final answer
    x = 297,149,149.80

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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.