Finding the Fourth Proportional to 5,431,968.90, 8,147,953.35 and 1,837,853.10
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Solution
The fourth proportional to 5,431,968.90, 8,147,953.35 and 1,837,853.10 is: 2,756,779.65
Step by Step Solution
- Step 1: Write the proportion equation
5,431,968.90 : 8,147,953.35 = 1,837,853.10 : x - Step 2: Convert to fraction form
5,431,968.90/8,147,953.35 = 1,837,853.10/x - Step 3: Cross multiply
5,431,968.90x = 8,147,953.35 × 1,837,853.10 - Step 4: Simplify right side
5,431,968.90x = 14,974,741,322,952.88 - Step 5: Solve for x
x = 14,974,741,322,952.88/5,431,968.90 - Step 6: Final answer
x = 2,756,779.65
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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.