Home / 18,801,982.56-25,937,184-12,279,428.32

Finding the Fourth Proportional to 18,801,982.56, 25,937,184 and 12,279,428.32

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Solution

The fourth proportional to 18,801,982.56, 25,937,184 and 12,279,428.32 is: 16,939,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801,982.56 : 25,937,184 = 12,279,428.32 : x
  2. Step 2: Convert to fraction form
    18,801,982.56/25,937,184 = 12,279,428.32/x
  3. Step 3: Cross multiply
    18,801,982.56x = 25,937,184 × 12,279,428.32
  4. Step 4: Simplify right side
    18,801,982.56x = 318,493,791,750,650.88
  5. Step 5: Solve for x
    x = 318,493,791,750,650.88/18,801,982.56
  6. Step 6: Final answer
    x = 16,939,372.79

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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.