Finding the Fourth Proportional to 274,617,489.23, 378,611,519.92 and 198,171,596.91
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Solution
The fourth proportional to 274,617,489.23, 378,611,519.92 and 198,171,596.91 is: 273,216,573.80
Step by Step Solution
- Step 1: Write the proportion equation
274,617,489.23 : 378,611,519.92 = 198,171,596.91 : x - Step 2: Convert to fraction form
274,617,489.23/378,611,519.92 = 198,171,596.91/x - Step 3: Cross multiply
274,617,489.23x = 378,611,519.92 × 198,171,596.91 - Step 4: Simplify right side
274,617,489.23x = 75,030,049,510,573,248 - Step 5: Solve for x
x = 75,030,049,510,573,248/274,617,489.23 - Step 6: Final answer
x = 273,216,573.80
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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.