Finding the Fourth Proportional to 13,331,362.05, 18,398,775.92 and 7,530,517.46
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Solution
The fourth proportional to 13,331,362.05, 18,398,775.92 and 7,530,517.46 is: 10,392,959.31
Step by Step Solution
- Step 1: Write the proportion equation
13,331,362.05 : 18,398,775.92 = 7,530,517.46 : x - Step 2: Convert to fraction form
13,331,362.05/18,398,775.92 = 7,530,517.46/x - Step 3: Cross multiply
13,331,362.05x = 18,398,775.92 × 7,530,517.46 - Step 4: Simplify right side
13,331,362.05x = 138,552,303,316,531.92 - Step 5: Solve for x
x = 138,552,303,316,531.92/13,331,362.05 - Step 6: Final answer
x = 10,392,959.31
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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.