Finding the Fourth Proportional to 36,378,778.20, 54,575,748.90 and 12,125,239.80
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Solution
The fourth proportional to 36,378,778.20, 54,575,748.90 and 12,125,239.80 is: 18,190,386.69
Step by Step Solution
- Step 1: Write the proportion equation
36,378,778.20 : 54,575,748.90 = 12,125,239.80 : x - Step 2: Convert to fraction form
36,378,778.20/54,575,748.90 = 12,125,239.80/x - Step 3: Cross multiply
36,378,778.20x = 54,575,748.90 × 12,125,239.80 - Step 4: Simplify right side
36,378,778.20x = 661,744,042,677,086.25 - Step 5: Solve for x
x = 661,744,042,677,086.25/36,378,778.20 - Step 6: Final answer
x = 18,190,386.69
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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.