Finding the Fourth Proportional to 19,928,997.52, 27,504,048.12 and 12,199,148.08
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Solution
The fourth proportional to 19,928,997.52, 27,504,048.12 and 12,199,148.08 is: 16,836,067.92
Step by Step Solution
- Step 1: Write the proportion equation
19,928,997.52 : 27,504,048.12 = 12,199,148.08 : x - Step 2: Convert to fraction form
19,928,997.52/27,504,048.12 = 12,199,148.08/x - Step 3: Cross multiply
19,928,997.52x = 27,504,048.12 × 12,199,148.08 - Step 4: Simplify right side
19,928,997.52x = 335,525,955,815,325.62 - Step 5: Solve for x
x = 335,525,955,815,325.62/19,928,997.52 - Step 6: Final answer
x = 16,836,067.92
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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.