Finding the Fourth Proportional to 21,353,715.48, 32,081,672.35 and 13,692,370.62
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Solution
The fourth proportional to 21,353,715.48, 32,081,672.35 and 13,692,370.62 is: 20,571,321.58
Step by Step Solution
- Step 1: Write the proportion equation
21,353,715.48 : 32,081,672.35 = 13,692,370.62 : x - Step 2: Convert to fraction form
21,353,715.48/32,081,672.35 = 13,692,370.62/x - Step 3: Cross multiply
21,353,715.48x = 32,081,672.35 × 13,692,370.62 - Step 4: Simplify right side
21,353,715.48x = 439,274,147,986,008.44 - Step 5: Solve for x
x = 439,274,147,986,008.44/21,353,715.48 - Step 6: Final answer
x = 20,571,321.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.