Finding the Fourth Proportional to 7,990,419.36, 11,994,158.31 and 3,443,711.97
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Solution
The fourth proportional to 7,990,419.36, 11,994,158.31 and 3,443,711.97 is: 5,169,243.90
Step by Step Solution
- Step 1: Write the proportion equation
7,990,419.36 : 11,994,158.31 = 3,443,711.97 : x - Step 2: Convert to fraction form
7,990,419.36/11,994,158.31 = 3,443,711.97/x - Step 3: Cross multiply
7,990,419.36x = 11,994,158.31 × 3,443,711.97 - Step 4: Simplify right side
7,990,419.36x = 41,304,426,542,221.98 - Step 5: Solve for x
x = 41,304,426,542,221.98/7,990,419.36 - Step 6: Final answer
x = 5,169,243.90
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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.