Finding the Fourth Proportional to 21,481,858.43, 29,647,488.94 and 12,064,197.14
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Solution
The fourth proportional to 21,481,858.43, 29,647,488.94 and 12,064,197.14 is: 16,650,009.71
Step by Step Solution
- Step 1: Write the proportion equation
21,481,858.43 : 29,647,488.94 = 12,064,197.14 : x - Step 2: Convert to fraction form
21,481,858.43/29,647,488.94 = 12,064,197.14/x - Step 3: Cross multiply
21,481,858.43x = 29,647,488.94 × 12,064,197.14 - Step 4: Simplify right side
21,481,858.43x = 357,673,151,278,129.69 - Step 5: Solve for x
x = 357,673,151,278,129.69/21,481,858.43 - Step 6: Final answer
x = 16,650,009.71
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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.