Home / 20,857,925.55-28,783,999.26-11,566,150.22

Finding the Fourth Proportional to 20,857,925.55, 28,783,999.26 and 11,566,150.22

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Solution

The fourth proportional to 20,857,925.55, 28,783,999.26 and 11,566,150.22 is: 15,961,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857,925.55 : 28,783,999.26 = 11,566,150.22 : x
  2. Step 2: Convert to fraction form
    20,857,925.55/28,783,999.26 = 11,566,150.22/x
  3. Step 3: Cross multiply
    20,857,925.55x = 28,783,999.26 × 11,566,150.22
  4. Step 4: Simplify right side
    20,857,925.55x = 332,920,059,373,528.88
  5. Step 5: Solve for x
    x = 332,920,059,373,528.88/20,857,925.55
  6. Step 6: Final answer
    x = 15,961,321.68

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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.