Finding the Fourth Proportional to 328,878,198.20, 493,278,896.93 and 132,133,647.03
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Solution
The fourth proportional to 328,878,198.20, 493,278,896.93 and 132,133,647.03 is: 198,185,042.39
Step by Step Solution
- Step 1: Write the proportion equation
328,878,198.20 : 493,278,896.93 = 132,133,647.03 : x - Step 2: Convert to fraction form
328,878,198.20/493,278,896.93 = 132,133,647.03/x - Step 3: Cross multiply
328,878,198.20x = 493,278,896.93 × 132,133,647.03 - Step 4: Simplify right side
328,878,198.20x = 65,178,739,651,785,912 - Step 5: Solve for x
x = 65,178,739,651,785,912/328,878,198.20 - Step 6: Final answer
x = 198,185,042.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.