Finding the Fourth Proportional to 9,190,629.20, 13,785,943.80 and 5,159,550.80
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Solution
The fourth proportional to 9,190,629.20, 13,785,943.80 and 5,159,550.80 is: 7,739,326.20
Step by Step Solution
- Step 1: Write the proportion equation
9,190,629.20 : 13,785,943.80 = 5,159,550.80 : x - Step 2: Convert to fraction form
9,190,629.20/13,785,943.80 = 5,159,550.80/x - Step 3: Cross multiply
9,190,629.20x = 13,785,943.80 × 5,159,550.80 - Step 4: Simplify right side
9,190,629.20x = 71,129,277,362,045.05 - Step 5: Solve for x
x = 71,129,277,362,045.05/9,190,629.20 - Step 6: Final answer
x = 7,739,326.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.