Home / 18,934,869.60-28,416,301.20-12,542,997.60

Finding the Fourth Proportional to 18,934,869.60, 28,416,301.20 and 12,542,997.60

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Solution

The fourth proportional to 18,934,869.60, 28,416,301.20 and 12,542,997.60 is: 18,823,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934,869.60 : 28,416,301.20 = 12,542,997.60 : x
  2. Step 2: Convert to fraction form
    18,934,869.60/28,416,301.20 = 12,542,997.60/x
  3. Step 3: Cross multiply
    18,934,869.60x = 28,416,301.20 × 12,542,997.60
  4. Step 4: Simplify right side
    18,934,869.60x = 356,425,597,752,477.12
  5. Step 5: Solve for x
    x = 356,425,597,752,477.12/18,934,869.60
  6. Step 6: Final answer
    x = 18,823,768.28

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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.