Finding the Fourth Proportional to 27,821,569.50, 38,393,765.91 and 16,219,621.98
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Solution
The fourth proportional to 27,821,569.50, 38,393,765.91 and 16,219,621.98 is: 22,383,078.33
Step by Step Solution
- Step 1: Write the proportion equation
27,821,569.50 : 38,393,765.91 = 16,219,621.98 : x - Step 2: Convert to fraction form
27,821,569.50/38,393,765.91 = 16,219,621.98/x - Step 3: Cross multiply
27,821,569.50x = 38,393,765.91 × 16,219,621.98 - Step 4: Simplify right side
27,821,569.50x = 622,732,369,448,810.62 - Step 5: Solve for x
x = 622,732,369,448,810.62/27,821,569.50 - Step 6: Final answer
x = 22,383,078.33
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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.