Finding the Fourth Proportional to 7,777,213.90, 10,729,561.80 and 4,871,546.26
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Solution
The fourth proportional to 7,777,213.90, 10,729,561.80 and 4,871,546.26 is: 6,720,858.82
Step by Step Solution
- Step 1: Write the proportion equation
7,777,213.90 : 10,729,561.80 = 4,871,546.26 : x - Step 2: Convert to fraction form
7,777,213.90/10,729,561.80 = 4,871,546.26/x - Step 3: Cross multiply
7,777,213.90x = 10,729,561.80 × 4,871,546.26 - Step 4: Simplify right side
7,777,213.90x = 52,269,556,658,228.87 - Step 5: Solve for x
x = 52,269,556,658,228.87/7,777,213.90 - Step 6: Final answer
x = 6,720,858.82
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1.5x scale
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.