Finding the Fourth Proportional to 7,419,441.60, 11,129,914.08 and 2,561,114.88
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Solution
The fourth proportional to 7,419,441.60, 11,129,914.08 and 2,561,114.88 is: 3,841,931.79
Step by Step Solution
- Step 1: Write the proportion equation
7,419,441.60 : 11,129,914.08 = 2,561,114.88 : x - Step 2: Convert to fraction form
7,419,441.60/11,129,914.08 = 2,561,114.88/x - Step 3: Cross multiply
7,419,441.60x = 11,129,914.08 × 2,561,114.88 - Step 4: Simplify right side
7,419,441.60x = 28,504,988,563,409.51 - Step 5: Solve for x
x = 28,504,988,563,409.51/7,419,441.60 - Step 6: Final answer
x = 3,841,931.79
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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.