Finding the Fourth Proportional to 21,152,146.26, 29,198,890.60 and 14,285,928.54
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Solution
The fourth proportional to 21,152,146.26, 29,198,890.60 and 14,285,928.54 is: 19,720,611.77
Step by Step Solution
- Step 1: Write the proportion equation
21,152,146.26 : 29,198,890.60 = 14,285,928.54 : x - Step 2: Convert to fraction form
21,152,146.26/29,198,890.60 = 14,285,928.54/x - Step 3: Cross multiply
21,152,146.26x = 29,198,890.60 × 14,285,928.54 - Step 4: Simplify right side
21,152,146.26x = 417,133,264,558,877.75 - Step 5: Solve for x
x = 417,133,264,558,877.75/21,152,146.26 - Step 6: Final answer
x = 19,720,611.77
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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.