Finding the Fourth Proportional to 18,109,672.20, 24,991,286.40 and 10,374,690.60
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Solution
The fourth proportional to 18,109,672.20, 24,991,286.40 and 10,374,690.60 is: 14,317,037.95
Step by Step Solution
- Step 1: Write the proportion equation
18,109,672.20 : 24,991,286.40 = 10,374,690.60 : x - Step 2: Convert to fraction form
18,109,672.20/24,991,286.40 = 10,374,690.60/x - Step 3: Cross multiply
18,109,672.20x = 24,991,286.40 × 10,374,690.60 - Step 4: Simplify right side
18,109,672.20x = 259,276,864,095,987.81 - Step 5: Solve for x
x = 259,276,864,095,987.81/18,109,672.20 - Step 6: Final answer
x = 14,317,037.95
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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.