Finding the Fourth Proportional to 7,151,890.95, 9,869,537.83 and 3,888,705.84
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Solution
The fourth proportional to 7,151,890.95, 9,869,537.83 and 3,888,705.84 is: 5,366,375.08
Step by Step Solution
- Step 1: Write the proportion equation
7,151,890.95 : 9,869,537.83 = 3,888,705.84 : x - Step 2: Convert to fraction form
7,151,890.95/9,869,537.83 = 3,888,705.84/x - Step 3: Cross multiply
7,151,890.95x = 9,869,537.83 × 3,888,705.84 - Step 4: Simplify right side
7,151,890.95x = 38,379,729,397,621.93 - Step 5: Solve for x
x = 38,379,729,397,621.93/7,151,890.95 - Step 6: Final answer
x = 5,366,375.08
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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.