Finding the Fourth Proportional to 21,652,020.72, 29,879,811.63 and 11,728,926.50
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Solution
The fourth proportional to 21,652,020.72, 29,879,811.63 and 11,728,926.50 is: 16,185,931.04
Step by Step Solution
- Step 1: Write the proportion equation
21,652,020.72 : 29,879,811.63 = 11,728,926.50 : x - Step 2: Convert to fraction form
21,652,020.72/29,879,811.63 = 11,728,926.50/x - Step 3: Cross multiply
21,652,020.72x = 29,879,811.63 × 11,728,926.50 - Step 4: Simplify right side
21,652,020.72x = 350,458,114,292,716.12 - Step 5: Solve for x
x = 350,458,114,292,716.12/21,652,020.72 - Step 6: Final answer
x = 16,185,931.04
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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.