Finding the Fourth Proportional to 5,228,427.69, 7,215,906.80 and 2,936,588.31
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Solution
The fourth proportional to 5,228,427.69, 7,215,906.80 and 2,936,588.31 is: 4,052,871.88
Step by Step Solution
- Step 1: Write the proportion equation
5,228,427.69 : 7,215,906.80 = 2,936,588.31 : x - Step 2: Convert to fraction form
5,228,427.69/7,215,906.80 = 2,936,588.31/x - Step 3: Cross multiply
5,228,427.69x = 7,215,906.80 × 2,936,588.31 - Step 4: Simplify right side
5,228,427.69x = 21,190,147,562,270.98 - Step 5: Solve for x
x = 21,190,147,562,270.98/5,228,427.69 - Step 6: Final answer
x = 4,052,871.88
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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.