Finding the Fourth Proportional to 12,270,258.97, 16,949,130.20 and 9,167,389.54
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Solution
The fourth proportional to 12,270,258.97, 16,949,130.20 and 9,167,389.54 is: 12,663,080.65
Step by Step Solution
- Step 1: Write the proportion equation
12,270,258.97 : 16,949,130.20 = 9,167,389.54 : x - Step 2: Convert to fraction form
12,270,258.97/16,949,130.20 = 9,167,389.54/x - Step 3: Cross multiply
12,270,258.97x = 16,949,130.20 × 9,167,389.54 - Step 4: Simplify right side
12,270,258.97x = 155,379,278,907,578.09 - Step 5: Solve for x
x = 155,379,278,907,578.09/12,270,258.97 - Step 6: Final answer
x = 12,663,080.65
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1.5x scale
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.