Finding the Fourth Proportional to 8,938,453.20, 12,341,236.68 and 8,367,383.76
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Solution
The fourth proportional to 8,938,453.20, 12,341,236.68 and 8,367,383.76 is: 11,552,766.58
Step by Step Solution
- Step 1: Write the proportion equation
8,938,453.20 : 12,341,236.68 = 8,367,383.76 : x - Step 2: Convert to fraction form
8,938,453.20/12,341,236.68 = 8,367,383.76/x - Step 3: Cross multiply
8,938,453.20x = 12,341,236.68 × 8,367,383.76 - Step 4: Simplify right side
8,938,453.20x = 103,263,863,374,548.31 - Step 5: Solve for x
x = 103,263,863,374,548.31/8,938,453.20 - Step 6: Final answer
x = 11,552,766.58
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1.5x scale
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.