Finding the Fourth Proportional to 5,415,615.05, 7,474,372.20 and 3,456,338.45
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Solution
The fourth proportional to 5,415,615.05, 7,474,372.20 and 3,456,338.45 is: 4,770,272.59
Step by Step Solution
- Step 1: Write the proportion equation
5,415,615.05 : 7,474,372.20 = 3,456,338.45 : x - Step 2: Convert to fraction form
5,415,615.05/7,474,372.20 = 3,456,338.45/x - Step 3: Cross multiply
5,415,615.05x = 7,474,372.20 × 3,456,338.45 - Step 4: Simplify right side
5,415,615.05x = 25,833,959,987,099.23 - Step 5: Solve for x
x = 25,833,959,987,099.23/5,415,615.05 - Step 6: Final answer
x = 4,770,272.59
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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.