Finding the Fourth Proportional to 3,871,944.40, 5,343,063.51 and 2,153,027.92
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Solution
The fourth proportional to 3,871,944.40, 5,343,063.51 and 2,153,027.92 is: 2,971,056.33
Step by Step Solution
- Step 1: Write the proportion equation
3,871,944.40 : 5,343,063.51 = 2,153,027.92 : x - Step 2: Convert to fraction form
3,871,944.40/5,343,063.51 = 2,153,027.92/x - Step 3: Cross multiply
3,871,944.40x = 5,343,063.51 × 2,153,027.92 - Step 4: Simplify right side
3,871,944.40x = 11,503,764,915,363.20 - Step 5: Solve for x
x = 11,503,764,915,363.20/3,871,944.40 - Step 6: Final answer
x = 2,971,056.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.