Finding the Fourth Proportional to 7,165,668.62, 9,888,902.58 and 4,068,480.12
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Solution
The fourth proportional to 7,165,668.62, 9,888,902.58 and 4,068,480.12 is: 5,614,661.48
Step by Step Solution
- Step 1: Write the proportion equation
7,165,668.62 : 9,888,902.58 = 4,068,480.12 : x - Step 2: Convert to fraction form
7,165,668.62/9,888,902.58 = 4,068,480.12/x - Step 3: Cross multiply
7,165,668.62x = 9,888,902.58 × 4,068,480.12 - Step 4: Simplify right side
7,165,668.62x = 40,232,803,555,346.71 - Step 5: Solve for x
x = 40,232,803,555,346.71/7,165,668.62 - Step 6: Final answer
x = 5,614,661.48
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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.