Finding the Fourth Proportional to 19,813,197.72, 27,342,438.64 and 10,992,811.80
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Solution
The fourth proportional to 19,813,197.72, 27,342,438.64 and 10,992,811.80 is: 15,170,205.56
Step by Step Solution
- Step 1: Write the proportion equation
19,813,197.72 : 27,342,438.64 = 10,992,811.80 : x - Step 2: Convert to fraction form
19,813,197.72/27,342,438.64 = 10,992,811.80/x - Step 3: Cross multiply
19,813,197.72x = 27,342,438.64 × 10,992,811.80 - Step 4: Simplify right side
19,813,197.72x = 300,570,282,122,568 - Step 5: Solve for x
x = 300,570,282,122,568/19,813,197.72 - Step 6: Final answer
x = 15,170,205.56
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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.