Finding the Fourth Proportional to 18,875,676.18, 28,175,714.70 and 16,197,213.54
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Solution
The fourth proportional to 18,875,676.18, 28,175,714.70 and 16,197,213.54 is: 24,177,574.53
Step by Step Solution
- Step 1: Write the proportion equation
18,875,676.18 : 28,175,714.70 = 16,197,213.54 : x - Step 2: Convert to fraction form
18,875,676.18/28,175,714.70 = 16,197,213.54/x - Step 3: Cross multiply
18,875,676.18x = 28,175,714.70 × 16,197,213.54 - Step 4: Simplify right side
18,875,676.18x = 456,368,067,638,017 - Step 5: Solve for x
x = 456,368,067,638,017/18,875,676.18 - Step 6: Final answer
x = 24,177,574.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.