Finding the Third Proportional to 7,769,285 and 12,187,715
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Solution
The third proportional to 7,769,285 and 12,187,715 is: 19,118,927.54
Step by Step Solution
- Step 1: Write the proportion equation
7,769,285 : 12,187,715 = 12,187,715 : x - Step 2: Convert to fraction form
7,769,285/12,187,715 = 12,187,715/x - Step 3: Cross multiply
7,769,285x = 12,187,715 × 12,187,715 - Step 4: Simplify right side
7,769,285x = 148,540,396,921,225 - Step 5: Solve for x
x = 148,540,396,921,225/7,769,285 - Step 6: Final answer
x = 19,118,927.54
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.