Finding the Fourth Proportional to 3,811,512.70, 5,259,202.05 and 2,157,648.58
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Solution
The fourth proportional to 3,811,512.70, 5,259,202.05 and 2,157,648.58 is: 2,977,167.00
Step by Step Solution
- Step 1: Write the proportion equation
3,811,512.70 : 5,259,202.05 = 2,157,648.58 : x - Step 2: Convert to fraction form
3,811,512.70/5,259,202.05 = 2,157,648.58/x - Step 3: Cross multiply
3,811,512.70x = 5,259,202.05 × 2,157,648.58 - Step 4: Simplify right side
3,811,512.70x = 11,347,509,835,115.59 - Step 5: Solve for x
x = 11,347,509,835,115.59/3,811,512.70 - Step 6: Final answer
x = 2,977,167.00
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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.