Finding the Fourth Proportional to 19,906,860.43, 27,468,197.94 and 11,531,251.81
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Solution
The fourth proportional to 19,906,860.43, 27,468,197.94 and 11,531,251.81 is: 15,911,233.63
Step by Step Solution
- Step 1: Write the proportion equation
19,906,860.43 : 27,468,197.94 = 11,531,251.81 : x - Step 2: Convert to fraction form
19,906,860.43/27,468,197.94 = 11,531,251.81/x - Step 3: Cross multiply
19,906,860.43x = 27,468,197.94 × 11,531,251.81 - Step 4: Simplify right side
19,906,860.43x = 316,742,707,213,063.31 - Step 5: Solve for x
x = 316,742,707,213,063.31/19,906,860.43 - Step 6: Final answer
x = 15,911,233.63
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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.