Finding the Fourth Proportional to 20,232,846.84, 27,919,640.75 and 11,411,812.02
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Solution
The fourth proportional to 20,232,846.84, 27,919,640.75 and 11,411,812.02 is: 15,747,348.57
Step by Step Solution
- Step 1: Write the proportion equation
20,232,846.84 : 27,919,640.75 = 11,411,812.02 : x - Step 2: Convert to fraction form
20,232,846.84/27,919,640.75 = 11,411,812.02/x - Step 3: Cross multiply
20,232,846.84x = 27,919,640.75 × 11,411,812.02 - Step 4: Simplify right side
20,232,846.84x = 318,613,691,847,872.75 - Step 5: Solve for x
x = 318,613,691,847,872.75/20,232,846.84 - Step 6: Final answer
x = 15,747,348.57
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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.