Finding the Fourth Proportional to 18,374,655.60, 27,561,983.40 and 11,992,114.80
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Solution
The fourth proportional to 18,374,655.60, 27,561,983.40 and 11,992,114.80 is: 17,988,172.20
Step by Step Solution
- Step 1: Write the proportion equation
18,374,655.60 : 27,561,983.40 = 11,992,114.80 : x - Step 2: Convert to fraction form
18,374,655.60/27,561,983.40 = 11,992,114.80/x - Step 3: Cross multiply
18,374,655.60x = 27,561,983.40 × 11,992,114.80 - Step 4: Simplify right side
18,374,655.60x = 330,526,469,048,494.31 - Step 5: Solve for x
x = 330,526,469,048,494.31/18,374,655.60 - Step 6: Final answer
x = 17,988,172.20
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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.