Finding the Third Proportional to 7,872,234 and 12,854,649
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Solution
The third proportional to 7,872,234 and 12,854,649 is: 20,990,483.88
Step by Step Solution
- Step 1: Write the proportion equation
7,872,234 : 12,854,649 = 12,854,649 : x - Step 2: Convert to fraction form
7,872,234/12,854,649 = 12,854,649/x - Step 3: Cross multiply
7,872,234x = 12,854,649 × 12,854,649 - Step 4: Simplify right side
7,872,234x = 165,242,000,913,201 - Step 5: Solve for x
x = 165,242,000,913,201/7,872,234 - Step 6: Final answer
x = 20,990,483.88
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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.