Finding the Fourth Proportional to 7,147,166.36, 9,863,057.12 and 3,883,919.36
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Solution
The fourth proportional to 7,147,166.36, 9,863,057.12 and 3,883,919.36 is: 5,359,791.07
Step by Step Solution
- Step 1: Write the proportion equation
7,147,166.36 : 9,863,057.12 = 3,883,919.36 : x - Step 2: Convert to fraction form
7,147,166.36/9,863,057.12 = 3,883,919.36/x - Step 3: Cross multiply
7,147,166.36x = 9,863,057.12 × 3,883,919.36 - Step 4: Simplify right side
7,147,166.36x = 38,307,318,428,418.96 - Step 5: Solve for x
x = 38,307,318,428,418.96/7,147,166.36 - Step 6: Final answer
x = 5,359,791.07
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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.