Finding the Third Proportional to 120,539,929 and 261,628,911
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Solution
The third proportional to 120,539,929 and 261,628,911 is: 567,859,029.28
Step by Step Solution
- Step 1: Write the proportion equation
120,539,929 : 261,628,911 = 261,628,911 : x - Step 2: Convert to fraction form
120,539,929/261,628,911 = 261,628,911/x - Step 3: Cross multiply
120,539,929x = 261,628,911 × 261,628,911 - Step 4: Simplify right side
120,539,929x = 68,449,687,071,045,920 - Step 5: Solve for x
x = 68,449,687,071,045,920/120,539,929 - Step 6: Final answer
x = 567,859,029.28
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Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.