Finding the Fourth Proportional to 12,689,949.63, 19,035,662.81 and 3,591,286.05
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Solution
The fourth proportional to 12,689,949.63, 19,035,662.81 and 3,591,286.05 is: 5,387,138.03
Step by Step Solution
- Step 1: Write the proportion equation
12,689,949.63 : 19,035,662.81 = 3,591,286.05 : x - Step 2: Convert to fraction form
12,689,949.63/19,035,662.81 = 3,591,286.05/x - Step 3: Cross multiply
12,689,949.63x = 19,035,662.81 × 3,591,286.05 - Step 4: Simplify right side
12,689,949.63x = 68,362,510,302,056.79 - Step 5: Solve for x
x = 68,362,510,302,056.79/12,689,949.63 - Step 6: Final answer
x = 5,387,138.03
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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.