Finding the Fourth Proportional to 135,940,420.80, 203,910,631.20 and 122,335,531.20
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Solution
The fourth proportional to 135,940,420.80, 203,910,631.20 and 122,335,531.20 is: 183,503,296.80
Step by Step Solution
- Step 1: Write the proportion equation
135,940,420.80 : 203,910,631.20 = 122,335,531.20 : x - Step 2: Convert to fraction form
135,940,420.80/203,910,631.20 = 122,335,531.20/x - Step 3: Cross multiply
135,940,420.80x = 203,910,631.20 × 122,335,531.20 - Step 4: Simplify right side
135,940,420.80x = 24,945,515,385,179,292 - Step 5: Solve for x
x = 24,945,515,385,179,292/135,940,420.80 - Step 6: Final answer
x = 183,503,296.80
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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.