Finding the Fourth Proportional to 198,939,618.24, 274,431,592.80 and 136,952,341.44
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Solution
The fourth proportional to 198,939,618.24, 274,431,592.80 and 136,952,341.44 is: 188,921,892.64
Step by Step Solution
- Step 1: Write the proportion equation
198,939,618.24 : 274,431,592.80 = 136,952,341.44 : x - Step 2: Convert to fraction form
198,939,618.24/274,431,592.80 = 136,952,341.44/x - Step 3: Cross multiply
198,939,618.24x = 274,431,592.80 × 136,952,341.44 - Step 4: Simplify right side
198,939,618.24x = 37,584,049,199,068,648 - Step 5: Solve for x
x = 37,584,049,199,068,648/198,939,618.24 - Step 6: Final answer
x = 188,921,892.64
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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.