Finding the Fourth Proportional to 19,694,415.28, 27,179,662.44 and 10,994,286.28
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Solution
The fourth proportional to 19,694,415.28, 27,179,662.44 and 10,994,286.28 is: 15,172,879.50
Step by Step Solution
- Step 1: Write the proportion equation
19,694,415.28 : 27,179,662.44 = 10,994,286.28 : x - Step 2: Convert to fraction form
19,694,415.28/27,179,662.44 = 10,994,286.28/x - Step 3: Cross multiply
19,694,415.28x = 27,179,662.44 × 10,994,286.28 - Step 4: Simplify right side
19,694,415.28x = 298,820,989,859,123.31 - Step 5: Solve for x
x = 298,820,989,859,123.31/19,694,415.28 - Step 6: Final answer
x = 15,172,879.50
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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.