Finding the Fourth Proportional to 7,390,836.12, 11,017,936.40 and 7,274,361.96
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Solution
The fourth proportional to 7,390,836.12, 11,017,936.40 and 7,274,361.96 is: 10,844,301.80
Step by Step Solution
- Step 1: Write the proportion equation
7,390,836.12 : 11,017,936.40 = 7,274,361.96 : x - Step 2: Convert to fraction form
7,390,836.12/11,017,936.40 = 7,274,361.96/x - Step 3: Cross multiply
7,390,836.12x = 11,017,936.40 × 7,274,361.96 - Step 4: Simplify right side
7,390,836.12x = 80,148,457,425,859.34 - Step 5: Solve for x
x = 80,148,457,425,859.34/7,390,836.12 - Step 6: Final answer
x = 10,844,301.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.