Finding the Fourth Proportional to 146,769,738.20, 220,154,607.30 and 137,699,811.80
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Solution
The fourth proportional to 146,769,738.20, 220,154,607.30 and 137,699,811.80 is: 206,549,717.70
Step by Step Solution
- Step 1: Write the proportion equation
146,769,738.20 : 220,154,607.30 = 137,699,811.80 : x - Step 2: Convert to fraction form
146,769,738.20/220,154,607.30 = 137,699,811.80/x - Step 3: Cross multiply
146,769,738.20x = 220,154,607.30 × 137,699,811.80 - Step 4: Simplify right side
146,769,738.20x = 30,315,247,992,112,912 - Step 5: Solve for x
x = 30,315,247,992,112,912/146,769,738.20 - Step 6: Final answer
x = 206,549,717.70
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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.