Home / 3,120,707,620.80-4,681,061,431.20-1,281,780,043.20

Finding the Fourth Proportional to 3,120,707,620.80, 4,681,061,431.20 and 1,281,780,043.20

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Solution

The fourth proportional to 3,120,707,620.80, 4,681,061,431.20 and 1,281,780,043.20 is: 1,922,670,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,707,620.80 : 4,681,061,431.20 = 1,281,780,043.20 : x
  2. Step 2: Convert to fraction form
    3,120,707,620.80/4,681,061,431.20 = 1,281,780,043.20/x
  3. Step 3: Cross multiply
    3,120,707,620.80x = 4,681,061,431.20 × 1,281,780,043.20
  4. Step 4: Simplify right side
    3,120,707,620.80x = 6,000,091,123,505,389,568
  5. Step 5: Solve for x
    x = 6,000,091,123,505,389,568/3,120,707,620.80
  6. Step 6: Final answer
    x = 1,922,670,064.80

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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.