Finding the Fourth Proportional to 3,940,912.03, 5,438,458.65 and 2,130,076.03
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Solution
The fourth proportional to 3,940,912.03, 5,438,458.65 and 2,130,076.03 is: 2,939,504.95
Step by Step Solution
- Step 1: Write the proportion equation
3,940,912.03 : 5,438,458.65 = 2,130,076.03 : x - Step 2: Convert to fraction form
3,940,912.03/5,438,458.65 = 2,130,076.03/x - Step 3: Cross multiply
3,940,912.03x = 5,438,458.65 × 2,130,076.03 - Step 4: Simplify right side
3,940,912.03x = 11,584,330,410,511.16 - Step 5: Solve for x
x = 11,584,330,410,511.16/3,940,912.03 - Step 6: Final answer
x = 2,939,504.95
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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.