Finding the Fourth Proportional to 21,519,122.04, 29,699,808.30 and 13,264,042.68
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Solution
The fourth proportional to 21,519,122.04, 29,699,808.30 and 13,264,042.68 is: 18,306,486.86
Step by Step Solution
- Step 1: Write the proportion equation
21,519,122.04 : 29,699,808.30 = 13,264,042.68 : x - Step 2: Convert to fraction form
21,519,122.04/29,699,808.30 = 13,264,042.68/x - Step 3: Cross multiply
21,519,122.04x = 29,699,808.30 × 13,264,042.68 - Step 4: Simplify right side
21,519,122.04x = 393,939,524,879,018.25 - Step 5: Solve for x
x = 393,939,524,879,018.25/21,519,122.04 - Step 6: Final answer
x = 18,306,486.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.