Finding the Fourth Proportional to 156,930,409.20, 235,289,325.60 and 80,190,328.80
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Solution
The fourth proportional to 156,930,409.20, 235,289,325.60 and 80,190,328.80 is: 120,231,180.68
Step by Step Solution
- Step 1: Write the proportion equation
156,930,409.20 : 235,289,325.60 = 80,190,328.80 : x - Step 2: Convert to fraction form
156,930,409.20/235,289,325.60 = 80,190,328.80/x - Step 3: Cross multiply
156,930,409.20x = 235,289,325.60 × 80,190,328.80 - Step 4: Simplify right side
156,930,409.20x = 18,867,928,382,994,256 - Step 5: Solve for x
x = 18,867,928,382,994,256/156,930,409.20 - Step 6: Final answer
x = 120,231,180.68
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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.