Finding the Fourth Proportional to 324,769,861.80, 487,154,792.70 and 82,432,765.80
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Solution
The fourth proportional to 324,769,861.80, 487,154,792.70 and 82,432,765.80 is: 123,649,148.70
Step by Step Solution
- Step 1: Write the proportion equation
324,769,861.80 : 487,154,792.70 = 82,432,765.80 : x - Step 2: Convert to fraction form
324,769,861.80/487,154,792.70 = 82,432,765.80/x - Step 3: Cross multiply
324,769,861.80x = 487,154,792.70 × 82,432,765.80 - Step 4: Simplify right side
324,769,861.80x = 40,157,516,934,986,648 - Step 5: Solve for x
x = 40,157,516,934,986,648/324,769,861.80 - Step 6: Final answer
x = 123,649,148.70
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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.