Finding the Fourth Proportional to 21,465,205.36, 29,619,289.02 and 14,511,010.12
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Solution
The fourth proportional to 21,465,205.36, 29,619,289.02 and 14,511,010.12 is: 20,023,372.50
Step by Step Solution
- Step 1: Write the proportion equation
21,465,205.36 : 29,619,289.02 = 14,511,010.12 : x - Step 2: Convert to fraction form
21,465,205.36/29,619,289.02 = 14,511,010.12/x - Step 3: Cross multiply
21,465,205.36x = 29,619,289.02 × 14,511,010.12 - Step 4: Simplify right side
21,465,205.36x = 429,805,802,716,424.88 - Step 5: Solve for x
x = 429,805,802,716,424.88/21,465,205.36 - Step 6: Final answer
x = 20,023,372.50
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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.