Home / 20,178,612.96-27,847,078.20-11,011,847.28

Finding the Fourth Proportional to 20,178,612.96, 27,847,078.20 and 11,011,847.28

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Solution

The fourth proportional to 20,178,612.96, 27,847,078.20 and 11,011,847.28 is: 15,196,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,612.96 : 27,847,078.20 = 11,011,847.28 : x
  2. Step 2: Convert to fraction form
    20,178,612.96/27,847,078.20 = 11,011,847.28/x
  3. Step 3: Cross multiply
    20,178,612.96x = 27,847,078.20 × 11,011,847.28
  4. Step 4: Simplify right side
    20,178,612.96x = 306,647,772,332,617.25
  5. Step 5: Solve for x
    x = 306,647,772,332,617.25/20,178,612.96
  6. Step 6: Final answer
    x = 15,196,672.48

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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.