Finding the Fourth Proportional to 7,202,546.12, 9,938,409.30 and 4,146,169.64
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Solution
The fourth proportional to 7,202,546.12, 9,938,409.30 and 4,146,169.64 is: 5,721,078.38
Step by Step Solution
- Step 1: Write the proportion equation
7,202,546.12 : 9,938,409.30 = 4,146,169.64 : x - Step 2: Convert to fraction form
7,202,546.12/9,938,409.30 = 4,146,169.64/x - Step 3: Cross multiply
7,202,546.12x = 9,938,409.30 × 4,146,169.64 - Step 4: Simplify right side
7,202,546.12x = 41,206,330,909,553.66 - Step 5: Solve for x
x = 41,206,330,909,553.66/7,202,546.12 - Step 6: Final answer
x = 5,721,078.38
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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.