Finding the Fourth Proportional to 388,469,120.97, 536,094,601.19 and 212,268,528.84
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Solution
The fourth proportional to 388,469,120.97, 536,094,601.19 and 212,268,528.84 is: 292,934,511.83
Step by Step Solution
- Step 1: Write the proportion equation
388,469,120.97 : 536,094,601.19 = 212,268,528.84 : x - Step 2: Convert to fraction form
388,469,120.97/536,094,601.19 = 212,268,528.84/x - Step 3: Cross multiply
388,469,120.97x = 536,094,601.19 × 212,268,528.84 - Step 4: Simplify right side
388,469,120.97x = 113,796,012,312,606,480 - Step 5: Solve for x
x = 113,796,012,312,606,480/388,469,120.97 - Step 6: Final answer
x = 292,934,511.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.