Home / 12,945,211.20-19,410,818.40-5,372,942.40

Finding the Fourth Proportional to 12,945,211.20, 19,410,818.40 and 5,372,942.40

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Solution

The fourth proportional to 12,945,211.20, 19,410,818.40 and 5,372,942.40 is: 8,056,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945,211.20 : 19,410,818.40 = 5,372,942.40 : x
  2. Step 2: Convert to fraction form
    12,945,211.20/19,410,818.40 = 5,372,942.40/x
  3. Step 3: Cross multiply
    12,945,211.20x = 19,410,818.40 × 5,372,942.40
  4. Step 4: Simplify right side
    12,945,211.20x = 104,293,209,200,060.16
  5. Step 5: Solve for x
    x = 104,293,209,200,060.16/12,945,211.20
  6. Step 6: Final answer
    x = 8,056,508.90

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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.