Finding the Fourth Proportional to 20,180,771.66, 27,849,076.26 and 11,013,480.02
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Solution
The fourth proportional to 20,180,771.66, 27,849,076.26 and 11,013,480.02 is: 15,198,390.34
Step by Step Solution
- Step 1: Write the proportion equation
20,180,771.66 : 27,849,076.26 = 11,013,480.02 : x - Step 2: Convert to fraction form
20,180,771.66/27,849,076.26 = 11,013,480.02/x - Step 3: Cross multiply
20,180,771.66x = 27,849,076.26 × 11,013,480.02 - Step 4: Simplify right side
20,180,771.66x = 306,715,244,964,966.31 - Step 5: Solve for x
x = 306,715,244,964,966.31/20,180,771.66 - Step 6: Final answer
x = 15,198,390.34
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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.