Finding the Fourth Proportional to 21,497,033.48, 29,666,745.78 and 12,205,467.96
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Solution
The fourth proportional to 21,497,033.48, 29,666,745.78 and 12,205,467.96 is: 16,844,022.48
Step by Step Solution
- Step 1: Write the proportion equation
21,497,033.48 : 29,666,745.78 = 12,205,467.96 : x - Step 2: Convert to fraction form
21,497,033.48/29,666,745.78 = 12,205,467.96/x - Step 3: Cross multiply
21,497,033.48x = 29,666,745.78 × 12,205,467.96 - Step 4: Simplify right side
21,497,033.48x = 362,096,515,095,255.25 - Step 5: Solve for x
x = 362,096,515,095,255.25/21,497,033.48 - Step 6: Final answer
x = 16,844,022.48
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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.