Finding the Fourth Proportional to 12,381,695.09, 17,086,739.18 and 6,949,187.09
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Solution
The fourth proportional to 12,381,695.09, 17,086,739.18 and 6,949,187.09 is: 9,589,878.16
Step by Step Solution
- Step 1: Write the proportion equation
12,381,695.09 : 17,086,739.18 = 6,949,187.09 : x - Step 2: Convert to fraction form
12,381,695.09/17,086,739.18 = 6,949,187.09/x - Step 3: Cross multiply
12,381,695.09x = 17,086,739.18 × 6,949,187.09 - Step 4: Simplify right side
12,381,695.09x = 118,738,947,319,853.19 - Step 5: Solve for x
x = 118,738,947,319,853.19/12,381,695.09 - Step 6: Final answer
x = 9,589,878.16
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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.