Finding the Fourth Proportional to 20,207,409.99, 27,886,236.97 and 10,914,980.01
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Solution
The fourth proportional to 20,207,409.99, 27,886,236.97 and 10,914,980.01 is: 15,062,678.45
Step by Step Solution
- Step 1: Write the proportion equation
20,207,409.99 : 27,886,236.97 = 10,914,980.01 : x - Step 2: Convert to fraction form
20,207,409.99/27,886,236.97 = 10,914,980.01/x - Step 3: Cross multiply
20,207,409.99x = 27,886,236.97 × 10,914,980.01 - Step 4: Simplify right side
20,207,409.99x = 304,377,719,081,672.94 - Step 5: Solve for x
x = 304,377,719,081,672.94/20,207,409.99 - Step 6: Final answer
x = 15,062,678.45
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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.