Finding the Fourth Proportional to 18,443,343.40, 27,681,745.65 and 9,351,765.70
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Solution
The fourth proportional to 18,443,343.40, 27,681,745.65 and 9,351,765.70 is: 14,036,131.84
Step by Step Solution
- Step 1: Write the proportion equation
18,443,343.40 : 27,681,745.65 = 9,351,765.70 : x - Step 2: Convert to fraction form
18,443,343.40/27,681,745.65 = 9,351,765.70/x - Step 3: Cross multiply
18,443,343.40x = 27,681,745.65 × 9,351,765.70 - Step 4: Simplify right side
18,443,343.40x = 258,873,199,485,794.16 - Step 5: Solve for x
x = 258,873,199,485,794.16/18,443,343.40 - Step 6: Final answer
x = 14,036,131.84
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1.5x scale
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.