Finding the Fourth Proportional to 18,288,705.40, 27,437,613.54 and 12,907,855.96
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Solution
The fourth proportional to 18,288,705.40, 27,437,613.54 and 12,907,855.96 is: 19,364,999.09
Step by Step Solution
- Step 1: Write the proportion equation
18,288,705.40 : 27,437,613.54 = 12,907,855.96 : x - Step 2: Convert to fraction form
18,288,705.40/27,437,613.54 = 12,907,855.96/x - Step 3: Cross multiply
18,288,705.40x = 27,437,613.54 × 12,907,855.96 - Step 4: Simplify right side
18,288,705.40x = 354,160,763,460,465.69 - Step 5: Solve for x
x = 354,160,763,460,465.69/18,288,705.40 - Step 6: Final answer
x = 19,364,999.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.