Finding the Fourth Proportional to 80,751,211.20, 121,126,816.80 and 71,504,137.80
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Solution
The fourth proportional to 80,751,211.20, 121,126,816.80 and 71,504,137.80 is: 107,256,206.70
Step by Step Solution
- Step 1: Write the proportion equation
80,751,211.20 : 121,126,816.80 = 71,504,137.80 : x - Step 2: Convert to fraction form
80,751,211.20/121,126,816.80 = 71,504,137.80/x - Step 3: Cross multiply
80,751,211.20x = 121,126,816.80 × 71,504,137.80 - Step 4: Simplify right side
80,751,211.20x = 8,661,068,599,742,554 - Step 5: Solve for x
x = 8,661,068,599,742,554/80,751,211.20 - Step 6: Final answer
x = 107,256,206.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.