Finding the Fourth Proportional to 7,769,293.60, 11,649,793.20 and 3,276,493.60
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Solution
The fourth proportional to 7,769,293.60, 11,649,793.20 and 3,276,493.60 is: 4,912,991.43
Step by Step Solution
- Step 1: Write the proportion equation
7,769,293.60 : 11,649,793.20 = 3,276,493.60 : x - Step 2: Convert to fraction form
7,769,293.60/11,649,793.20 = 3,276,493.60/x - Step 3: Cross multiply
7,769,293.60x = 11,649,793.20 × 3,276,493.60 - Step 4: Simplify right side
7,769,293.60x = 38,170,472,861,123.52 - Step 5: Solve for x
x = 38,170,472,861,123.52/7,769,293.60 - Step 6: Final answer
x = 4,912,991.43
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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.