Finding the Fourth Proportional to 3,561,134.68, 4,914,137.58 and 1,991,395.95
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Solution
The fourth proportional to 3,561,134.68, 4,914,137.58 and 1,991,395.95 is: 2,747,998.76
Step by Step Solution
- Step 1: Write the proportion equation
3,561,134.68 : 4,914,137.58 = 1,991,395.95 : x - Step 2: Convert to fraction form
3,561,134.68/4,914,137.58 = 1,991,395.95/x - Step 3: Cross multiply
3,561,134.68x = 4,914,137.58 × 1,991,395.95 - Step 4: Simplify right side
3,561,134.68x = 9,785,993,674,554.80 - Step 5: Solve for x
x = 9,785,993,674,554.80/3,561,134.68 - Step 6: Final answer
x = 2,747,998.76
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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.