Finding the Fourth Proportional to 68,883,624.40, 103,325,436.60 and 57,630,197.20
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Solution
The fourth proportional to 68,883,624.40, 103,325,436.60 and 57,630,197.20 is: 86,445,295.80
Step by Step Solution
- Step 1: Write the proportion equation
68,883,624.40 : 103,325,436.60 = 57,630,197.20 : x - Step 2: Convert to fraction form
68,883,624.40/103,325,436.60 = 57,630,197.20/x - Step 3: Cross multiply
68,883,624.40x = 103,325,436.60 × 57,630,197.20 - Step 4: Simplify right side
68,883,624.40x = 5,954,665,287,034,097 - Step 5: Solve for x
x = 5,954,665,287,034,097/68,883,624.40 - Step 6: Final answer
x = 86,445,295.80
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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.