Finding the Fourth Proportional to 21,652,022.22, 29,879,813.70 and 11,728,928.00
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Solution
The fourth proportional to 21,652,022.22, 29,879,813.70 and 11,728,928.00 is: 16,185,933.11
Step by Step Solution
- Step 1: Write the proportion equation
21,652,022.22 : 29,879,813.70 = 11,728,928.00 : x - Step 2: Convert to fraction form
21,652,022.22/29,879,813.70 = 11,728,928.00/x - Step 3: Cross multiply
21,652,022.22x = 29,879,813.70 × 11,728,928.00 - Step 4: Simplify right side
21,652,022.22x = 350,458,183,391,314.50 - Step 5: Solve for x
x = 350,458,183,391,314.50/21,652,022.22 - Step 6: Final answer
x = 16,185,933.11
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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.