Home / 18,672,015.20-28,008,023.40-5,025,192.30

Finding the Fourth Proportional to 18,672,015.20, 28,008,023.40 and 5,025,192.30

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Solution

The fourth proportional to 18,672,015.20, 28,008,023.40 and 5,025,192.30 is: 7,537,788.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672,015.20 : 28,008,023.40 = 5,025,192.30 : x
  2. Step 2: Convert to fraction form
    18,672,015.20/28,008,023.40 = 5,025,192.30/x
  3. Step 3: Cross multiply
    18,672,015.20x = 28,008,023.40 × 5,025,192.30
  4. Step 4: Simplify right side
    18,672,015.20x = 140,745,703,527,899.81
  5. Step 5: Solve for x
    x = 140,745,703,527,899.81/18,672,015.20
  6. Step 6: Final answer
    x = 7,537,788.61

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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.