Finding the Third Proportional to 6,440,420 and 13,889,720
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Solution
The third proportional to 6,440,420 and 13,889,720 is: 29,955,239.20
Step by Step Solution
- Step 1: Write the proportion equation
6,440,420 : 13,889,720 = 13,889,720 : x - Step 2: Convert to fraction form
6,440,420/13,889,720 = 13,889,720/x - Step 3: Cross multiply
6,440,420x = 13,889,720 × 13,889,720 - Step 4: Simplify right side
6,440,420x = 192,924,321,678,400 - Step 5: Solve for x
x = 192,924,321,678,400/6,440,420 - Step 6: Final answer
x = 29,955,239.20
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.