Finding the Fourth Proportional to 12,128,079.70, 18,194,743.95 and 3,609,277.30
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Solution
The fourth proportional to 12,128,079.70, 18,194,743.95 and 3,609,277.30 is: 5,414,696.96
Step by Step Solution
- Step 1: Write the proportion equation
12,128,079.70 : 18,194,743.95 = 3,609,277.30 : x - Step 2: Convert to fraction form
12,128,079.70/18,194,743.95 = 3,609,277.30/x - Step 3: Cross multiply
12,128,079.70x = 18,194,743.95 × 3,609,277.30 - Step 4: Simplify right side
12,128,079.70x = 65,669,876,318,047.33 - Step 5: Solve for x
x = 65,669,876,318,047.33/12,128,079.70 - Step 6: Final answer
x = 5,414,696.96
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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.