Finding the Fourth Proportional to 21,463,687.94, 29,610,118.40 and 12,756,912.26
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Solution
The fourth proportional to 21,463,687.94, 29,610,118.40 and 12,756,912.26 is: 17,598,731.56
Step by Step Solution
- Step 1: Write the proportion equation
21,463,687.94 : 29,610,118.40 = 12,756,912.26 : x - Step 2: Convert to fraction form
21,463,687.94/29,610,118.40 = 12,756,912.26/x - Step 3: Cross multiply
21,463,687.94x = 29,610,118.40 × 12,756,912.26 - Step 4: Simplify right side
21,463,687.94x = 377,733,682,437,011.56 - Step 5: Solve for x
x = 377,733,682,437,011.56/21,463,687.94 - Step 6: Final answer
x = 17,598,731.56
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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.