Finding the Fourth Proportional to 7,777,412.90, 11,666,119.35 and 2,729,233.70
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Solution
The fourth proportional to 7,777,412.90, 11,666,119.35 and 2,729,233.70 is: 4,093,850.55
Step by Step Solution
- Step 1: Write the proportion equation
7,777,412.90 : 11,666,119.35 = 2,729,233.70 : x - Step 2: Convert to fraction form
7,777,412.90/11,666,119.35 = 2,729,233.70/x - Step 3: Cross multiply
7,777,412.90x = 11,666,119.35 × 2,729,233.70 - Step 4: Simplify right side
7,777,412.90x = 31,839,566,078,242.10 - Step 5: Solve for x
x = 31,839,566,078,242.10/7,777,412.90 - Step 6: Final answer
x = 4,093,850.55
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Similar ratio
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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.