Finding the Fourth Proportional to 6,141,458.40, 8,472,471.60 and 3,561,643.68
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Solution
The fourth proportional to 6,141,458.40, 8,472,471.60 and 3,561,643.68 is: 4,913,478.68
Step by Step Solution
- Step 1: Write the proportion equation
6,141,458.40 : 8,472,471.60 = 3,561,643.68 : x - Step 2: Convert to fraction form
6,141,458.40/8,472,471.60 = 3,561,643.68/x - Step 3: Cross multiply
6,141,458.40x = 8,472,471.60 × 3,561,643.68 - Step 4: Simplify right side
6,141,458.40x = 30,175,924,928,119.49 - Step 5: Solve for x
x = 30,175,924,928,119.49/6,141,458.40 - Step 6: Final answer
x = 4,913,478.68
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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.