Finding the Fourth Proportional to 179,869,197.78, 269,785,639.10 and 121,948,771.79
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Solution
The fourth proportional to 179,869,197.78, 269,785,639.10 and 121,948,771.79 is: 182,910,847.11
Step by Step Solution
- Step 1: Write the proportion equation
179,869,197.78 : 269,785,639.10 = 121,948,771.79 : x - Step 2: Convert to fraction form
179,869,197.78/269,785,639.10 = 121,948,771.79/x - Step 3: Cross multiply
179,869,197.78x = 269,785,639.10 × 121,948,771.79 - Step 4: Simplify right side
179,869,197.78x = 32,900,027,335,804,540 - Step 5: Solve for x
x = 32,900,027,335,804,540/179,869,197.78 - Step 6: Final answer
x = 182,910,847.11
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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.