Finding the Fourth Proportional to 19,646,022, 27,112,943.28 and 11,388,216.18
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Solution
The fourth proportional to 19,646,022, 27,112,943.28 and 11,388,216.18 is: 15,716,568.95
Step by Step Solution
- Step 1: Write the proportion equation
19,646,022 : 27,112,943.28 = 11,388,216.18 : x - Step 2: Convert to fraction form
19,646,022/27,112,943.28 = 11,388,216.18/x - Step 3: Cross multiply
19,646,022x = 27,112,943.28 × 11,388,216.18 - Step 4: Simplify right side
19,646,022x = 308,768,059,348,718.25 - Step 5: Solve for x
x = 308,768,059,348,718.25/19,646,022 - Step 6: Final answer
x = 15,716,568.95
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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.