Finding the Fourth Proportional to 20,207,409.74, 27,886,236.63 and 10,914,979.76
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Solution
The fourth proportional to 20,207,409.74, 27,886,236.63 and 10,914,979.76 is: 15,062,678.10
Step by Step Solution
- Step 1: Write the proportion equation
20,207,409.74 : 27,886,236.63 = 10,914,979.76 : x - Step 2: Convert to fraction form
20,207,409.74/27,886,236.63 = 10,914,979.76/x - Step 3: Cross multiply
20,207,409.74x = 27,886,236.63 × 10,914,979.76 - Step 4: Simplify right side
20,207,409.74x = 304,377,708,259,589.44 - Step 5: Solve for x
x = 304,377,708,259,589.44/20,207,409.74 - Step 6: Final answer
x = 15,062,678.10
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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.