Finding the Fourth Proportional to 19,916,764.19, 27,485,979.59 and 11,096,207.63
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Solution
The fourth proportional to 19,916,764.19, 27,485,979.59 and 11,096,207.63 is: 15,313,237.31
Step by Step Solution
- Step 1: Write the proportion equation
19,916,764.19 : 27,485,979.59 = 11,096,207.63 : x - Step 2: Convert to fraction form
19,916,764.19/27,485,979.59 = 11,096,207.63/x - Step 3: Cross multiply
19,916,764.19x = 27,485,979.59 × 11,096,207.63 - Step 4: Simplify right side
19,916,764.19x = 304,990,136,444,582.31 - Step 5: Solve for x
x = 304,990,136,444,582.31/19,916,764.19 - Step 6: Final answer
x = 15,313,237.31
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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.