Finding the Fourth Proportional to 86,276,106.92, 129,416,817.60 and 37,728,971.60
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Solution
The fourth proportional to 86,276,106.92, 129,416,817.60 and 37,728,971.60 is: 56,594,619.42
Step by Step Solution
- Step 1: Write the proportion equation
86,276,106.92 : 129,416,817.60 = 37,728,971.60 : x - Step 2: Convert to fraction form
86,276,106.92/129,416,817.60 = 37,728,971.60/x - Step 3: Cross multiply
86,276,106.92x = 129,416,817.60 × 37,728,971.60 - Step 4: Simplify right side
86,276,106.92x = 4,882,763,435,792,780 - Step 5: Solve for x
x = 4,882,763,435,792,780/86,276,106.92 - Step 6: Final answer
x = 56,594,619.42
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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.