Finding the Fourth Proportional to 19,504,970.09, 26,917,293.66 and 11,132,171.91
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Solution
The fourth proportional to 19,504,970.09, 26,917,293.66 and 11,132,171.91 is: 15,362,645.47
Step by Step Solution
- Step 1: Write the proportion equation
19,504,970.09 : 26,917,293.66 = 11,132,171.91 : x - Step 2: Convert to fraction form
19,504,970.09/26,917,293.66 = 11,132,171.91/x - Step 3: Cross multiply
19,504,970.09x = 26,917,293.66 × 11,132,171.91 - Step 4: Simplify right side
19,504,970.09x = 299,647,940,375,073.12 - Step 5: Solve for x
x = 299,647,940,375,073.12/19,504,970.09 - Step 6: Final answer
x = 15,362,645.47
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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.