Finding the Fourth Proportional to 5,142,668.64, 7,097,606.16 and 3,183,175.66
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Solution
The fourth proportional to 5,142,668.64, 7,097,606.16 and 3,183,175.66 is: 4,393,230.20
Step by Step Solution
- Step 1: Write the proportion equation
5,142,668.64 : 7,097,606.16 = 3,183,175.66 : x - Step 2: Convert to fraction form
5,142,668.64/7,097,606.16 = 3,183,175.66/x - Step 3: Cross multiply
5,142,668.64x = 7,097,606.16 × 3,183,175.66 - Step 4: Simplify right side
5,142,668.64x = 22,592,927,172,778.07 - Step 5: Solve for x
x = 22,592,927,172,778.07/5,142,668.64 - Step 6: Final answer
x = 4,393,230.20
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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.