Home / 43,454,912.80-65,107,719.60-20,686,784.80

Finding the Fourth Proportional to 43,454,912.80, 65,107,719.60 and 20,686,784.80

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Solution

The fourth proportional to 43,454,912.80, 65,107,719.60 and 20,686,784.80 is: 30,994,640.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,454,912.80 : 65,107,719.60 = 20,686,784.80 : x
  2. Step 2: Convert to fraction form
    43,454,912.80/65,107,719.60 = 20,686,784.80/x
  3. Step 3: Cross multiply
    43,454,912.80x = 65,107,719.60 × 20,686,784.80
  4. Step 4: Simplify right side
    43,454,912.80x = 1,346,869,384,183,942.25
  5. Step 5: Solve for x
    x = 1,346,869,384,183,942.25/43,454,912.80
  6. Step 6: Final answer
    x = 30,994,640.13

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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.