Finding the Fourth Proportional to 20,252,647.56, 27,948,916.14 and 11,085,093.48
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Solution
The fourth proportional to 20,252,647.56, 27,948,916.14 and 11,085,093.48 is: 15,297,572.68
Step by Step Solution
- Step 1: Write the proportion equation
20,252,647.56 : 27,948,916.14 = 11,085,093.48 : x - Step 2: Convert to fraction form
20,252,647.56/27,948,916.14 = 11,085,093.48/x - Step 3: Cross multiply
20,252,647.56x = 27,948,916.14 × 11,085,093.48 - Step 4: Simplify right side
20,252,647.56x = 309,816,348,076,580.81 - Step 5: Solve for x
x = 309,816,348,076,580.81/20,252,647.56 - Step 6: Final answer
x = 15,297,572.68
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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.