Home / 1,990,285,687.20-2,985,428,530.80-1,335,550,375.20

Finding the Fourth Proportional to 1,990,285,687.20, 2,985,428,530.80 and 1,335,550,375.20

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Solution

The fourth proportional to 1,990,285,687.20, 2,985,428,530.80 and 1,335,550,375.20 is: 2,003,325,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,285,687.20 : 2,985,428,530.80 = 1,335,550,375.20 : x
  2. Step 2: Convert to fraction form
    1,990,285,687.20/2,985,428,530.80 = 1,335,550,375.20/x
  3. Step 3: Cross multiply
    1,990,285,687.20x = 2,985,428,530.80 × 1,335,550,375.20
  4. Step 4: Simplify right side
    1,990,285,687.20x = 3,987,190,194,442,725,376
  5. Step 5: Solve for x
    x = 3,987,190,194,442,725,376/1,990,285,687.20
  6. Step 6: Final answer
    x = 2,003,325,562.80

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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.