Finding the Fourth Proportional to 3,811,372.12, 5,259,737.40 and 2,092,455.70
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Solution
The fourth proportional to 3,811,372.12, 5,259,737.40 and 2,092,455.70 is: 2,887,612.95
Step by Step Solution
- Step 1: Write the proportion equation
3,811,372.12 : 5,259,737.40 = 2,092,455.70 : x - Step 2: Convert to fraction form
3,811,372.12/5,259,737.40 = 2,092,455.70/x - Step 3: Cross multiply
3,811,372.12x = 5,259,737.40 × 2,092,455.70 - Step 4: Simplify right side
3,811,372.12x = 11,005,767,503,133.18 - Step 5: Solve for x
x = 11,005,767,503,133.18/3,811,372.12 - Step 6: Final answer
x = 2,887,612.95
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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.