Finding the Fourth Proportional to 18,441,745.20, 27,638,998.20 and 14,160,692.70
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Solution
The fourth proportional to 18,441,745.20, 27,638,998.20 and 14,160,692.70 is: 21,222,902.49
Step by Step Solution
- Step 1: Write the proportion equation
18,441,745.20 : 27,638,998.20 = 14,160,692.70 : x - Step 2: Convert to fraction form
18,441,745.20/27,638,998.20 = 14,160,692.70/x - Step 3: Cross multiply
18,441,745.20x = 27,638,998.20 × 14,160,692.70 - Step 4: Simplify right side
18,441,745.20x = 391,387,360,046,053.12 - Step 5: Solve for x
x = 391,387,360,046,053.12/18,441,745.20 - Step 6: Final answer
x = 21,222,902.49
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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.