Finding the Fourth Proportional to 5,902,943.11, 8,141,725.43 and 3,912,478.94
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Solution
The fourth proportional to 5,902,943.11, 8,141,725.43 and 3,912,478.94 is: 5,396,346.99
Step by Step Solution
- Step 1: Write the proportion equation
5,902,943.11 : 8,141,725.43 = 3,912,478.94 : x - Step 2: Convert to fraction form
5,902,943.11/8,141,725.43 = 3,912,478.94/x - Step 3: Cross multiply
5,902,943.11x = 8,141,725.43 × 3,912,478.94 - Step 4: Simplify right side
5,902,943.11x = 31,854,329,295,601.16 - Step 5: Solve for x
x = 31,854,329,295,601.16/5,902,943.11 - Step 6: Final answer
x = 5,396,346.99
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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.