Finding the Fourth Proportional to 12,135,663.48, 16,747,272.68 and 6,629,114.73
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Solution
The fourth proportional to 12,135,663.48, 16,747,272.68 and 6,629,114.73 is: 9,148,209.50
Step by Step Solution
- Step 1: Write the proportion equation
12,135,663.48 : 16,747,272.68 = 6,629,114.73 : x - Step 2: Convert to fraction form
12,135,663.48/16,747,272.68 = 6,629,114.73/x - Step 3: Cross multiply
12,135,663.48x = 16,747,272.68 × 6,629,114.73 - Step 4: Simplify right side
12,135,663.48x = 111,019,591,977,169.02 - Step 5: Solve for x
x = 111,019,591,977,169.02/12,135,663.48 - Step 6: Final answer
x = 9,148,209.50
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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.