Finding the Fourth Proportional to 21,542,929.08, 29,728,204.03 and 11,752,790.77
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Solution
The fourth proportional to 21,542,929.08, 29,728,204.03 and 11,752,790.77 is: 16,218,284.92
Step by Step Solution
- Step 1: Write the proportion equation
21,542,929.08 : 29,728,204.03 = 11,752,790.77 : x - Step 2: Convert to fraction form
21,542,929.08/29,728,204.03 = 11,752,790.77/x - Step 3: Cross multiply
21,542,929.08x = 29,728,204.03 × 11,752,790.77 - Step 4: Simplify right side
21,542,929.08x = 349,389,361,932,460.81 - Step 5: Solve for x
x = 349,389,361,932,460.81/21,542,929.08 - Step 6: Final answer
x = 16,218,284.92
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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.