Finding the Fourth Proportional to 7,045,741.08, 9,722,957.88 and 4,145,318.52
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Solution
The fourth proportional to 7,045,741.08, 9,722,957.88 and 4,145,318.52 is: 5,720,442.59
Step by Step Solution
- Step 1: Write the proportion equation
7,045,741.08 : 9,722,957.88 = 4,145,318.52 : x - Step 2: Convert to fraction form
7,045,741.08/9,722,957.88 = 4,145,318.52/x - Step 3: Cross multiply
7,045,741.08x = 9,722,957.88 × 4,145,318.52 - Step 4: Simplify right side
7,045,741.08x = 40,304,757,369,143.94 - Step 5: Solve for x
x = 40,304,757,369,143.94/7,045,741.08 - Step 6: Final answer
x = 5,720,442.59
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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.