Home / 20,657,455.80-30,986,183.70-18,425,403.60

Finding the Fourth Proportional to 20,657,455.80, 30,986,183.70 and 18,425,403.60

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Solution

The fourth proportional to 20,657,455.80, 30,986,183.70 and 18,425,403.60 is: 27,638,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,455.80 : 30,986,183.70 = 18,425,403.60 : x
  2. Step 2: Convert to fraction form
    20,657,455.80/30,986,183.70 = 18,425,403.60/x
  3. Step 3: Cross multiply
    20,657,455.80x = 30,986,183.70 × 18,425,403.60
  4. Step 4: Simplify right side
    20,657,455.80x = 570,932,940,696,241.38
  5. Step 5: Solve for x
    x = 570,932,940,696,241.38/20,657,455.80
  6. Step 6: Final answer
    x = 27,638,105.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.