Finding the Fourth Proportional to 21,027,944.96, 29,017,912.93 and 11,860,455.68
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Solution
The fourth proportional to 21,027,944.96, 29,017,912.93 and 11,860,455.68 is: 16,367,061.58
Step by Step Solution
- Step 1: Write the proportion equation
21,027,944.96 : 29,017,912.93 = 11,860,455.68 : x - Step 2: Convert to fraction form
21,027,944.96/29,017,912.93 = 11,860,455.68/x - Step 3: Cross multiply
21,027,944.96x = 29,017,912.93 × 11,860,455.68 - Step 4: Simplify right side
21,027,944.96x = 344,165,670,057,623.25 - Step 5: Solve for x
x = 344,165,670,057,623.25/21,027,944.96 - Step 6: Final answer
x = 16,367,061.58
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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.