Finding the Fourth Proportional to 7,658,242.18, 11,488,729.49 and 2,540,979.14
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Solution
The fourth proportional to 7,658,242.18, 11,488,729.49 and 2,540,979.14 is: 3,811,922.02
Step by Step Solution
- Step 1: Write the proportion equation
7,658,242.18 : 11,488,729.49 = 2,540,979.14 : x - Step 2: Convert to fraction form
7,658,242.18/11,488,729.49 = 2,540,979.14/x - Step 3: Cross multiply
7,658,242.18x = 11,488,729.49 × 2,540,979.14 - Step 4: Simplify right side
7,658,242.18x = 29,192,621,979,192.84 - Step 5: Solve for x
x = 29,192,621,979,192.84/7,658,242.18 - Step 6: Final answer
x = 3,811,922.02
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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.