Finding the Fourth Proportional to 21,453,840.44, 29,606,880.36 and 11,664,941.84
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Solution
The fourth proportional to 21,453,840.44, 29,606,880.36 and 11,664,941.84 is: 16,097,935.40
Step by Step Solution
- Step 1: Write the proportion equation
21,453,840.44 : 29,606,880.36 = 11,664,941.84 : x - Step 2: Convert to fraction form
21,453,840.44/29,606,880.36 = 11,664,941.84/x - Step 3: Cross multiply
21,453,840.44x = 29,606,880.36 × 11,664,941.84 - Step 4: Simplify right side
21,453,840.44x = 345,362,537,463,238.25 - Step 5: Solve for x
x = 345,362,537,463,238.25/21,453,840.44 - Step 6: Final answer
x = 16,097,935.40
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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.