Finding the Fourth Proportional to 10,993,396.16, 15,171,036 and 8,235,197.12
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Solution
The fourth proportional to 10,993,396.16, 15,171,036 and 8,235,197.12 is: 11,364,683.87
Step by Step Solution
- Step 1: Write the proportion equation
10,993,396.16 : 15,171,036 = 8,235,197.12 : x - Step 2: Convert to fraction form
10,993,396.16/15,171,036 = 8,235,197.12/x - Step 3: Cross multiply
10,993,396.16x = 15,171,036 × 8,235,197.12 - Step 4: Simplify right side
10,993,396.16x = 124,936,471,974,616.33 - Step 5: Solve for x
x = 124,936,471,974,616.33/10,993,396.16 - Step 6: Final answer
x = 11,364,683.87
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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.