Finding the Fourth Proportional to 11,821,038.51, 16,306,830.19 and 9,618,360.88
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Solution
The fourth proportional to 11,821,038.51, 16,306,830.19 and 9,618,360.88 is: 13,268,290.88
Step by Step Solution
- Step 1: Write the proportion equation
11,821,038.51 : 16,306,830.19 = 9,618,360.88 : x - Step 2: Convert to fraction form
11,821,038.51/16,306,830.19 = 9,618,360.88/x - Step 3: Cross multiply
11,821,038.51x = 16,306,830.19 × 9,618,360.88 - Step 4: Simplify right side
11,821,038.51x = 156,844,977,511,485.97 - Step 5: Solve for x
x = 156,844,977,511,485.97/11,821,038.51 - Step 6: Final answer
x = 13,268,290.88
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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.