Finding the Fourth Proportional to 11,877,766.75, 16,391,361.86 and 6,445,258.75
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Solution
The fourth proportional to 11,877,766.75, 16,391,361.86 and 6,445,258.75 is: 8,894,480.81
Step by Step Solution
- Step 1: Write the proportion equation
11,877,766.75 : 16,391,361.86 = 6,445,258.75 : x - Step 2: Convert to fraction form
11,877,766.75/16,391,361.86 = 6,445,258.75/x - Step 3: Cross multiply
11,877,766.75x = 16,391,361.86 × 6,445,258.75 - Step 4: Simplify right side
11,877,766.75x = 105,646,568,452,581.27 - Step 5: Solve for x
x = 105,646,568,452,581.27/11,877,766.75 - Step 6: Final answer
x = 8,894,480.81
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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.