Home / 21,800,785.60-30,083,644.80-13,093,784.64

Finding the Fourth Proportional to 21,800,785.60, 30,083,644.80 and 13,093,784.64

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Solution

The fourth proportional to 21,800,785.60, 30,083,644.80 and 13,093,784.64 is: 18,068,558.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800,785.60 : 30,083,644.80 = 13,093,784.64 : x
  2. Step 2: Convert to fraction form
    21,800,785.60/30,083,644.80 = 13,093,784.64/x
  3. Step 3: Cross multiply
    21,800,785.60x = 30,083,644.80 × 13,093,784.64
  4. Step 4: Simplify right side
    21,800,785.60x = 393,908,766,197,455.88
  5. Step 5: Solve for x
    x = 393,908,766,197,455.88/21,800,785.60
  6. Step 6: Final answer
    x = 18,068,558.33

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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.