Finding the Fourth Proportional to 7,639,768.62, 10,543,080.18 and 4,202,099.88
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Solution
The fourth proportional to 7,639,768.62, 10,543,080.18 and 4,202,099.88 is: 5,799,007.56
Step by Step Solution
- Step 1: Write the proportion equation
7,639,768.62 : 10,543,080.18 = 4,202,099.88 : x - Step 2: Convert to fraction form
7,639,768.62/10,543,080.18 = 4,202,099.88/x - Step 3: Cross multiply
7,639,768.62x = 10,543,080.18 × 4,202,099.88 - Step 4: Simplify right side
7,639,768.62x = 44,303,075,959,208.38 - Step 5: Solve for x
x = 44,303,075,959,208.38/7,639,768.62 - Step 6: Final answer
x = 5,799,007.56
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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.