Finding the Fourth Proportional to 7,642,016.97, 11,463,023.36 and 5,238,575.05
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Solution
The fourth proportional to 7,642,016.97, 11,463,023.36 and 5,238,575.05 is: 7,857,861.14
Step by Step Solution
- Step 1: Write the proportion equation
7,642,016.97 : 11,463,023.36 = 5,238,575.05 : x - Step 2: Convert to fraction form
7,642,016.97/11,463,023.36 = 5,238,575.05/x - Step 3: Cross multiply
7,642,016.97x = 11,463,023.36 × 5,238,575.05 - Step 4: Simplify right side
7,642,016.97x = 60,049,908,155,702.05 - Step 5: Solve for x
x = 60,049,908,155,702.05/7,642,016.97 - Step 6: Final answer
x = 7,857,861.14
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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.