Finding the Fourth Proportional to 7,208,640.62, 9,946,853.93 and 4,378,214.31
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Solution
The fourth proportional to 7,208,640.62, 9,946,853.93 and 4,378,214.31 is: 6,041,285.79
Step by Step Solution
- Step 1: Write the proportion equation
7,208,640.62 : 9,946,853.93 = 4,378,214.31 : x - Step 2: Convert to fraction form
7,208,640.62/9,946,853.93 = 4,378,214.31/x - Step 3: Cross multiply
7,208,640.62x = 9,946,853.93 × 4,378,214.31 - Step 4: Simplify right side
7,208,640.62x = 43,549,458,176,574.55 - Step 5: Solve for x
x = 43,549,458,176,574.55/7,208,640.62 - Step 6: Final answer
x = 6,041,285.79
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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.