Home / 20,213,438.80-30,321,470.40-10,647,500.80

Finding the Fourth Proportional to 20,213,438.80, 30,321,470.40 and 10,647,500.80

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Solution

The fourth proportional to 20,213,438.80, 30,321,470.40 and 10,647,500.80 is: 15,971,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,438.80 : 30,321,470.40 = 10,647,500.80 : x
  2. Step 2: Convert to fraction form
    20,213,438.80/30,321,470.40 = 10,647,500.80/x
  3. Step 3: Cross multiply
    20,213,438.80x = 30,321,470.40 × 10,647,500.80
  4. Step 4: Simplify right side
    20,213,438.80x = 322,847,880,341,176.31
  5. Step 5: Solve for x
    x = 322,847,880,341,176.31/20,213,438.80
  6. Step 6: Final answer
    x = 15,971,942.41

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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.