Finding the Fourth Proportional to 21,332,376.27, 29,438,458.43 and 11,542,604.49
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Solution
The fourth proportional to 21,332,376.27, 29,438,458.43 and 11,542,604.49 is: 15,928,674.71
Step by Step Solution
- Step 1: Write the proportion equation
21,332,376.27 : 29,438,458.43 = 11,542,604.49 : x - Step 2: Convert to fraction form
21,332,376.27/29,438,458.43 = 11,542,604.49/x - Step 3: Cross multiply
21,332,376.27x = 29,438,458.43 × 11,542,604.49 - Step 4: Simplify right side
21,332,376.27x = 339,796,482,395,083.31 - Step 5: Solve for x
x = 339,796,482,395,083.31/21,332,376.27 - Step 6: Final answer
x = 15,928,674.71
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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.