Finding the Third Proportional to 100,642,437 and 220,128,021
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Solution
The third proportional to 100,642,437 and 220,128,021 is: 481,470,312.86
Step by Step Solution
- Step 1: Write the proportion equation
100,642,437 : 220,128,021 = 220,128,021 : x - Step 2: Convert to fraction form
100,642,437/220,128,021 = 220,128,021/x - Step 3: Cross multiply
100,642,437x = 220,128,021 × 220,128,021 - Step 4: Simplify right side
100,642,437x = 48,456,345,629,376,440 - Step 5: Solve for x
x = 48,456,345,629,376,440/100,642,437 - Step 6: Final answer
x = 481,470,312.86
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.