Finding the Fourth Proportional to 11,518,291.88, 17,280,279.55 and 3,431,236.08
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Solution
The fourth proportional to 11,518,291.88, 17,280,279.55 and 3,431,236.08 is: 5,147,700.66
Step by Step Solution
- Step 1: Write the proportion equation
11,518,291.88 : 17,280,279.55 = 3,431,236.08 : x - Step 2: Convert to fraction form
11,518,291.88/17,280,279.55 = 3,431,236.08/x - Step 3: Cross multiply
11,518,291.88x = 17,280,279.55 × 3,431,236.08 - Step 4: Simplify right side
11,518,291.88x = 59,292,718,655,868.07 - Step 5: Solve for x
x = 59,292,718,655,868.07/11,518,291.88 - Step 6: Final answer
x = 5,147,700.66
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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.