Finding the Fourth Proportional to 19,651,491.18, 27,119,165.10 and 11,396,447.64
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Solution
The fourth proportional to 19,651,491.18, 27,119,165.10 and 11,396,447.64 is: 15,727,159.95
Step by Step Solution
- Step 1: Write the proportion equation
19,651,491.18 : 27,119,165.10 = 11,396,447.64 : x - Step 2: Convert to fraction form
19,651,491.18/27,119,165.10 = 11,396,447.64/x - Step 3: Cross multiply
19,651,491.18x = 27,119,165.10 × 11,396,447.64 - Step 4: Simplify right side
19,651,491.18x = 309,062,145,102,665.38 - Step 5: Solve for x
x = 309,062,145,102,665.38/19,651,491.18 - Step 6: Final answer
x = 15,727,159.95
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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.