Finding the Fourth Proportional to 21,019,907.08, 29,007,458.94 and 11,362,115.08
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Solution
The fourth proportional to 21,019,907.08, 29,007,458.94 and 11,362,115.08 is: 15,679,711.88
Step by Step Solution
- Step 1: Write the proportion equation
21,019,907.08 : 29,007,458.94 = 11,362,115.08 : x - Step 2: Convert to fraction form
21,019,907.08/29,007,458.94 = 11,362,115.08/x - Step 3: Cross multiply
21,019,907.08x = 29,007,458.94 × 11,362,115.08 - Step 4: Simplify right side
21,019,907.08x = 329,586,086,654,654.81 - Step 5: Solve for x
x = 329,586,086,654,654.81/21,019,907.08 - Step 6: Final answer
x = 15,679,711.88
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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.