Finding the Fourth Proportional to 11,790,905.60, 17,705,020.80 and 8,954,220.80
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Solution
The fourth proportional to 11,790,905.60, 17,705,020.80 and 8,954,220.80 is: 13,445,503.75
Step by Step Solution
- Step 1: Write the proportion equation
11,790,905.60 : 17,705,020.80 = 8,954,220.80 : x - Step 2: Convert to fraction form
11,790,905.60/17,705,020.80 = 8,954,220.80/x - Step 3: Cross multiply
11,790,905.60x = 17,705,020.80 × 8,954,220.80 - Step 4: Simplify right side
11,790,905.60x = 158,534,665,511,792.66 - Step 5: Solve for x
x = 158,534,665,511,792.66/11,790,905.60 - Step 6: Final answer
x = 13,445,503.75
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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.