Home / 20,522,229.20-30,763,039.80-9,720,544.40

Finding the Fourth Proportional to 20,522,229.20, 30,763,039.80 and 9,720,544.40

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Solution

The fourth proportional to 20,522,229.20, 30,763,039.80 and 9,720,544.40 is: 14,571,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522,229.20 : 30,763,039.80 = 9,720,544.40 : x
  2. Step 2: Convert to fraction form
    20,522,229.20/30,763,039.80 = 9,720,544.40/x
  3. Step 3: Cross multiply
    20,522,229.20x = 30,763,039.80 × 9,720,544.40
  4. Step 4: Simplify right side
    20,522,229.20x = 299,033,494,254,867.12
  5. Step 5: Solve for x
    x = 299,033,494,254,867.12/20,522,229.20
  6. Step 6: Final answer
    x = 14,571,199.42

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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.