Home / 18,685,600.20-28,028,400.30-18,433,657.80

Finding the Fourth Proportional to 18,685,600.20, 28,028,400.30 and 18,433,657.80

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Solution

The fourth proportional to 18,685,600.20, 28,028,400.30 and 18,433,657.80 is: 27,650,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,600.20 : 28,028,400.30 = 18,433,657.80 : x
  2. Step 2: Convert to fraction form
    18,685,600.20/28,028,400.30 = 18,433,657.80/x
  3. Step 3: Cross multiply
    18,685,600.20x = 28,028,400.30 × 18,433,657.80
  4. Step 4: Simplify right side
    18,685,600.20x = 516,665,939,811,617.38
  5. Step 5: Solve for x
    x = 516,665,939,811,617.38/18,685,600.20
  6. Step 6: Final answer
    x = 27,650,486.70

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Similar ratio
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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.