Finding the Fourth Proportional to 7,215,201.63, 9,957,107.64 and 3,951,806.17
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Solution
The fourth proportional to 7,215,201.63, 9,957,107.64 and 3,951,806.17 is: 5,453,563.38
Step by Step Solution
- Step 1: Write the proportion equation
7,215,201.63 : 9,957,107.64 = 3,951,806.17 : x - Step 2: Convert to fraction form
7,215,201.63/9,957,107.64 = 3,951,806.17/x - Step 3: Cross multiply
7,215,201.63x = 9,957,107.64 × 3,951,806.17 - Step 4: Simplify right side
7,215,201.63x = 39,348,559,450,583.23 - Step 5: Solve for x
x = 39,348,559,450,583.23/7,215,201.63 - Step 6: Final answer
x = 5,453,563.38
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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.