Finding the Fourth Proportional to 10,378,902.08, 15,569,838.84 and 3,191,039.42
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Solution
The fourth proportional to 10,378,902.08, 15,569,838.84 and 3,191,039.42 is: 4,787,015.92
Step by Step Solution
- Step 1: Write the proportion equation
10,378,902.08 : 15,569,838.84 = 3,191,039.42 : x - Step 2: Convert to fraction form
10,378,902.08/15,569,838.84 = 3,191,039.42/x - Step 3: Cross multiply
10,378,902.08x = 15,569,838.84 × 3,191,039.42 - Step 4: Simplify right side
10,378,902.08x = 49,683,969,501,487.07 - Step 5: Solve for x
x = 49,683,969,501,487.07/10,378,902.08 - Step 6: Final answer
x = 4,787,015.92
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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.