Finding the Fourth Proportional to 18,866,679.21, 26,036,939.84 and 10,609,339.95
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Solution
The fourth proportional to 18,866,679.21, 26,036,939.84 and 10,609,339.95 is: 14,641,407.90
Step by Step Solution
- Step 1: Write the proportion equation
18,866,679.21 : 26,036,939.84 = 10,609,339.95 : x - Step 2: Convert to fraction form
18,866,679.21/26,036,939.84 = 10,609,339.95/x - Step 3: Cross multiply
18,866,679.21x = 26,036,939.84 × 10,609,339.95 - Step 4: Simplify right side
18,866,679.21x = 276,234,745,967,211.91 - Step 5: Solve for x
x = 276,234,745,967,211.91/18,866,679.21 - Step 6: Final answer
x = 14,641,407.90
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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.