Finding the Fourth Proportional to 12,280,537.38, 18,396,869.37 and 7,476,310.74
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Solution
The fourth proportional to 12,280,537.38, 18,396,869.37 and 7,476,310.74 is: 11,199,893.60
Step by Step Solution
- Step 1: Write the proportion equation
12,280,537.38 : 18,396,869.37 = 7,476,310.74 : x - Step 2: Convert to fraction form
12,280,537.38/18,396,869.37 = 7,476,310.74/x - Step 3: Cross multiply
12,280,537.38x = 18,396,869.37 × 7,476,310.74 - Step 4: Simplify right side
12,280,537.38x = 137,540,712,053,308.05 - Step 5: Solve for x
x = 137,540,712,053,308.05/12,280,537.38 - Step 6: Final answer
x = 11,199,893.60
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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.