Finding the Third Proportional to 7,129,920 and 14,847,328
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Solution
The third proportional to 7,129,920 and 14,847,328 is: 30,918,039.58
Step by Step Solution
- Step 1: Write the proportion equation
7,129,920 : 14,847,328 = 14,847,328 : x - Step 2: Convert to fraction form
7,129,920/14,847,328 = 14,847,328/x - Step 3: Cross multiply
7,129,920x = 14,847,328 × 14,847,328 - Step 4: Simplify right side
7,129,920x = 220,443,148,739,584 - Step 5: Solve for x
x = 220,443,148,739,584/7,129,920 - Step 6: Final answer
x = 30,918,039.58
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Why These Related Problems?
These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.