Home / 20,330,566.97-28,056,182.56-11,163,209.72

Finding the Fourth Proportional to 20,330,566.97, 28,056,182.56 and 11,163,209.72

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Solution

The fourth proportional to 20,330,566.97, 28,056,182.56 and 11,163,209.72 is: 15,405,229.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330,566.97 : 28,056,182.56 = 11,163,209.72 : x
  2. Step 2: Convert to fraction form
    20,330,566.97/28,056,182.56 = 11,163,209.72/x
  3. Step 3: Cross multiply
    20,330,566.97x = 28,056,182.56 × 11,163,209.72
  4. Step 4: Simplify right side
    20,330,566.97x = 313,197,049,691,697.56
  5. Step 5: Solve for x
    x = 313,197,049,691,697.56/20,330,566.97
  6. Step 6: Final answer
    x = 15,405,229.49

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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.