Finding the Fourth Proportional to 12,163,231.40, 18,242,514.30 and 3,643,845.80
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Solution
The fourth proportional to 12,163,231.40, 18,242,514.30 and 3,643,845.80 is: 5,465,069.84
Step by Step Solution
- Step 1: Write the proportion equation
12,163,231.40 : 18,242,514.30 = 3,643,845.80 : x - Step 2: Convert to fraction form
12,163,231.40/18,242,514.30 = 3,643,845.80/x - Step 3: Cross multiply
12,163,231.40x = 18,242,514.30 × 3,643,845.80 - Step 4: Simplify right side
12,163,231.40x = 66,472,909,113,494.94 - Step 5: Solve for x
x = 66,472,909,113,494.94/12,163,231.40 - Step 6: Final answer
x = 5,465,069.84
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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.