Home / 28,378,729.20-42,568,093.80-10,440,706.80

Finding the Fourth Proportional to 28,378,729.20, 42,568,093.80 and 10,440,706.80

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Solution

The fourth proportional to 28,378,729.20, 42,568,093.80 and 10,440,706.80 is: 15,661,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,729.20 : 42,568,093.80 = 10,440,706.80 : x
  2. Step 2: Convert to fraction form
    28,378,729.20/42,568,093.80 = 10,440,706.80/x
  3. Step 3: Cross multiply
    28,378,729.20x = 42,568,093.80 × 10,440,706.80
  4. Step 4: Simplify right side
    28,378,729.20x = 444,440,986,400,697.81
  5. Step 5: Solve for x
    x = 444,440,986,400,697.81/28,378,729.20
  6. Step 6: Final answer
    x = 15,661,060.20

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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.