Finding the Fourth Proportional to 20,199,181.88, 27,875,048.03 and 11,497,913.97
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Solution
The fourth proportional to 20,199,181.88, 27,875,048.03 and 11,497,913.97 is: 15,867,222.05
Step by Step Solution
- Step 1: Write the proportion equation
20,199,181.88 : 27,875,048.03 = 11,497,913.97 : x - Step 2: Convert to fraction form
20,199,181.88/27,875,048.03 = 11,497,913.97/x - Step 3: Cross multiply
20,199,181.88x = 27,875,048.03 × 11,497,913.97 - Step 4: Simplify right side
20,199,181.88x = 320,504,904,196,451.31 - Step 5: Solve for x
x = 320,504,904,196,451.31/20,199,181.88 - Step 6: Final answer
x = 15,867,222.05
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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.