Finding the Fourth Proportional to 18,381,905.40, 27,572,858.10 and 14,574,775.80
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Solution
The fourth proportional to 18,381,905.40, 27,572,858.10 and 14,574,775.80 is: 21,862,163.70
Step by Step Solution
- Step 1: Write the proportion equation
18,381,905.40 : 27,572,858.10 = 14,574,775.80 : x - Step 2: Convert to fraction form
18,381,905.40/27,572,858.10 = 14,574,775.80/x - Step 3: Cross multiply
18,381,905.40x = 27,572,858.10 × 14,574,775.80 - Step 4: Simplify right side
18,381,905.40x = 401,868,224,972,714 - Step 5: Solve for x
x = 401,868,224,972,714/18,381,905.40 - Step 6: Final answer
x = 21,862,163.70
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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.