Finding the Fourth Proportional to 5,115,022,677.65, 7,058,656,173.60 and 2,856,995,157.02
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Solution
The fourth proportional to 5,115,022,677.65, 7,058,656,173.60 and 2,856,995,157.02 is: 3,942,611,357.56
Step by Step Solution
- Step 1: Write the proportion equation
5,115,022,677.65 : 7,058,656,173.60 = 2,856,995,157.02 : x - Step 2: Convert to fraction form
5,115,022,677.65/7,058,656,173.60 = 2,856,995,157.02/x - Step 3: Cross multiply
5,115,022,677.65x = 7,058,656,173.60 × 2,856,995,157.02 - Step 4: Simplify right side
5,115,022,677.65x = 20,166,546,503,076,524,032 - Step 5: Solve for x
x = 20,166,546,503,076,524,032/5,115,022,677.65 - Step 6: Final answer
x = 3,942,611,357.56
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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.