Finding the Fourth Proportional to 19,858,253.63, 27,398,091.44 and 12,119,422.91
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Solution
The fourth proportional to 19,858,253.63, 27,398,091.44 and 12,119,422.91 is: 16,720,959.62
Step by Step Solution
- Step 1: Write the proportion equation
19,858,253.63 : 27,398,091.44 = 12,119,422.91 : x - Step 2: Convert to fraction form
19,858,253.63/27,398,091.44 = 12,119,422.91/x - Step 3: Cross multiply
19,858,253.63x = 27,398,091.44 × 12,119,422.91 - Step 4: Simplify right side
19,858,253.63x = 332,049,056,981,518.94 - Step 5: Solve for x
x = 332,049,056,981,518.94/19,858,253.63 - Step 6: Final answer
x = 16,720,959.62
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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.