Finding the Fourth Proportional to 17,966,445.80, 26,949,668.70 and 7,185,410.60
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Solution
The fourth proportional to 17,966,445.80, 26,949,668.70 and 7,185,410.60 is: 10,778,115.90
Step by Step Solution
- Step 1: Write the proportion equation
17,966,445.80 : 26,949,668.70 = 7,185,410.60 : x - Step 2: Convert to fraction form
17,966,445.80/26,949,668.70 = 7,185,410.60/x - Step 3: Cross multiply
17,966,445.80x = 26,949,668.70 × 7,185,410.60 - Step 4: Simplify right side
17,966,445.80x = 193,644,435,143,468.22 - Step 5: Solve for x
x = 193,644,435,143,468.22/17,966,445.80 - Step 6: Final answer
x = 10,778,115.90
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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.