Finding the Fourth Proportional to 7,129,921.44, 9,839,224.62 and 3,866,808.18
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Solution
The fourth proportional to 7,129,921.44, 9,839,224.62 and 3,866,808.18 is: 5,336,158.97
Step by Step Solution
- Step 1: Write the proportion equation
7,129,921.44 : 9,839,224.62 = 3,866,808.18 : x - Step 2: Convert to fraction form
7,129,921.44/9,839,224.62 = 3,866,808.18/x - Step 3: Cross multiply
7,129,921.44x = 9,839,224.62 × 3,866,808.18 - Step 4: Simplify right side
7,129,921.44x = 38,046,394,245,473.39 - Step 5: Solve for x
x = 38,046,394,245,473.39/7,129,921.44 - Step 6: Final answer
x = 5,336,158.97
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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.