Finding the Fourth Proportional to 256,871,845.44, 354,483,375.84 and 139,397,176.80
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Solution
The fourth proportional to 256,871,845.44, 354,483,375.84 and 139,397,176.80 is: 192,368,228.33
Step by Step Solution
- Step 1: Write the proportion equation
256,871,845.44 : 354,483,375.84 = 139,397,176.80 : x - Step 2: Convert to fraction form
256,871,845.44/354,483,375.84 = 139,397,176.80/x - Step 3: Cross multiply
256,871,845.44x = 354,483,375.84 × 139,397,176.80 - Step 4: Simplify right side
256,871,845.44x = 49,413,981,814,629,328 - Step 5: Solve for x
x = 49,413,981,814,629,328/256,871,845.44 - Step 6: Final answer
x = 192,368,228.33
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.