Finding the Fourth Proportional to 19,641,232.80, 29,412,082.80 and 15,659,920.80
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Solution
The fourth proportional to 19,641,232.80, 29,412,082.80 and 15,659,920.80 is: 23,450,202.54
Step by Step Solution
- Step 1: Write the proportion equation
19,641,232.80 : 29,412,082.80 = 15,659,920.80 : x - Step 2: Convert to fraction form
19,641,232.80/29,412,082.80 = 15,659,920.80/x - Step 3: Cross multiply
19,641,232.80x = 29,412,082.80 × 15,659,920.80 - Step 4: Simplify right side
19,641,232.80x = 460,590,887,211,042.25 - Step 5: Solve for x
x = 460,590,887,211,042.25/19,641,232.80 - Step 6: Final answer
x = 23,450,202.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.