Finding the Fourth Proportional to 5,138,537.08, 7,705,391.34 and 2,980,175.24
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Solution
The fourth proportional to 5,138,537.08, 7,705,391.34 and 2,980,175.24 is: 4,468,862.66
Step by Step Solution
- Step 1: Write the proportion equation
5,138,537.08 : 7,705,391.34 = 2,980,175.24 : x - Step 2: Convert to fraction form
5,138,537.08/7,705,391.34 = 2,980,175.24/x - Step 3: Cross multiply
5,138,537.08x = 7,705,391.34 × 2,980,175.24 - Step 4: Simplify right side
5,138,537.08x = 22,963,416,456,310.65 - Step 5: Solve for x
x = 22,963,416,456,310.65/5,138,537.08 - Step 6: Final answer
x = 4,468,862.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.