Finding the Third Proportional to 7,872,235 and 12,854,651
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Solution
The third proportional to 7,872,235 and 12,854,651 is: 20,990,487.75
Step by Step Solution
- Step 1: Write the proportion equation
7,872,235 : 12,854,651 = 12,854,651 : x - Step 2: Convert to fraction form
7,872,235/12,854,651 = 12,854,651/x - Step 3: Cross multiply
7,872,235x = 12,854,651 × 12,854,651 - Step 4: Simplify right side
7,872,235x = 165,242,052,331,801 - Step 5: Solve for x
x = 165,242,052,331,801/7,872,235 - Step 6: Final answer
x = 20,990,487.75
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Why These Related Problems?
These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.