Finding the Fourth Proportional to 36,379,459.20, 54,576,770.40 and 12,125,920.80
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Solution
The fourth proportional to 36,379,459.20, 54,576,770.40 and 12,125,920.80 is: 18,191,408.28
Step by Step Solution
- Step 1: Write the proportion equation
36,379,459.20 : 54,576,770.40 = 12,125,920.80 : x - Step 2: Convert to fraction form
36,379,459.20/54,576,770.40 = 12,125,920.80/x - Step 3: Cross multiply
36,379,459.20x = 54,576,770.40 × 12,125,920.80 - Step 4: Simplify right side
36,379,459.20x = 661,793,595,390,184.38 - Step 5: Solve for x
x = 661,793,595,390,184.38/36,379,459.20 - Step 6: Final answer
x = 18,191,408.28
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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.