Home / 20,995,920.20-31,493,880.30-10,379,088.20

Finding the Fourth Proportional to 20,995,920.20, 31,493,880.30 and 10,379,088.20

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Solution

The fourth proportional to 20,995,920.20, 31,493,880.30 and 10,379,088.20 is: 15,568,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,995,920.20 : 31,493,880.30 = 10,379,088.20 : x
  2. Step 2: Convert to fraction form
    20,995,920.20/31,493,880.30 = 10,379,088.20/x
  3. Step 3: Cross multiply
    20,995,920.20x = 31,493,880.30 × 10,379,088.20
  4. Step 4: Simplify right side
    20,995,920.20x = 326,877,761,393,942.44
  5. Step 5: Solve for x
    x = 326,877,761,393,942.44/20,995,920.20
  6. Step 6: Final answer
    x = 15,568,632.30

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Similar ratio
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1.5x scale

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.