Finding the Fourth Proportional to 19,991,438.37, 29,987,157.87 and 4,845,369.87
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Solution
The fourth proportional to 19,991,438.37, 29,987,157.87 and 4,845,369.87 is: 7,268,054.88
Step by Step Solution
- Step 1: Write the proportion equation
19,991,438.37 : 29,987,157.87 = 4,845,369.87 : x - Step 2: Convert to fraction form
19,991,438.37/29,987,157.87 = 4,845,369.87/x - Step 3: Cross multiply
19,991,438.37x = 29,987,157.87 × 4,845,369.87 - Step 4: Simplify right side
19,991,438.37x = 145,298,871,230,231.38 - Step 5: Solve for x
x = 145,298,871,230,231.38/19,991,438.37 - Step 6: Final answer
x = 7,268,054.88
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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.