Home / 14,990,720.14-20,687,200.71-8,115,202.20

Finding the Fourth Proportional to 14,990,720.14, 20,687,200.71 and 8,115,202.20

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Solution

The fourth proportional to 14,990,720.14, 20,687,200.71 and 8,115,202.20 is: 11,198,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,720.14 : 20,687,200.71 = 8,115,202.20 : x
  2. Step 2: Convert to fraction form
    14,990,720.14/20,687,200.71 = 8,115,202.20/x
  3. Step 3: Cross multiply
    14,990,720.14x = 20,687,200.71 × 8,115,202.20
  4. Step 4: Simplify right side
    14,990,720.14x = 167,880,816,673,057.53
  5. Step 5: Solve for x
    x = 167,880,816,673,057.53/14,990,720.14
  6. Step 6: Final answer
    x = 11,198,982.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.