Finding the Fourth Proportional to 7,777,223.90, 10,729,575.60 and 4,871,556.26
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Solution
The fourth proportional to 7,777,223.90, 10,729,575.60 and 4,871,556.26 is: 6,720,872.62
Step by Step Solution
- Step 1: Write the proportion equation
7,777,223.90 : 10,729,575.60 = 4,871,556.26 : x - Step 2: Convert to fraction form
7,777,223.90/10,729,575.60 = 4,871,556.26/x - Step 3: Cross multiply
7,777,223.90x = 10,729,575.60 × 4,871,556.26 - Step 4: Simplify right side
7,777,223.90x = 52,269,731,181,323.25 - Step 5: Solve for x
x = 52,269,731,181,323.25/7,777,223.90 - Step 6: Final answer
x = 6,720,872.62
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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.