Finding the Fourth Proportional to 5,247,831.84, 7,241,715.12 and 2,892,953.60
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Solution
The fourth proportional to 5,247,831.84, 7,241,715.12 and 2,892,953.60 is: 3,992,114.55
Step by Step Solution
- Step 1: Write the proportion equation
5,247,831.84 : 7,241,715.12 = 2,892,953.60 : x - Step 2: Convert to fraction form
5,247,831.84/7,241,715.12 = 2,892,953.60/x - Step 3: Cross multiply
5,247,831.84x = 7,241,715.12 × 2,892,953.60 - Step 4: Simplify right side
5,247,831.84x = 20,949,945,826,578.43 - Step 5: Solve for x
x = 20,949,945,826,578.43/5,247,831.84 - Step 6: Final answer
x = 3,992,114.55
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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.