Home / 100,405,021.20-150,707,064.60-49,344,694.80

Finding the Fourth Proportional to 100,405,021.20, 150,707,064.60 and 49,344,694.80

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Solution

The fourth proportional to 100,405,021.20, 150,707,064.60 and 49,344,694.80 is: 74,065,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405,021.20 : 150,707,064.60 = 49,344,694.80 : x
  2. Step 2: Convert to fraction form
    100,405,021.20/150,707,064.60 = 49,344,694.80/x
  3. Step 3: Cross multiply
    100,405,021.20x = 150,707,064.60 × 49,344,694.80
  4. Step 4: Simplify right side
    100,405,021.20x = 7,436,594,106,890,883
  5. Step 5: Solve for x
    x = 7,436,594,106,890,883/100,405,021.20
  6. Step 6: Final answer
    x = 74,065,958.24

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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.