Finding the Third Proportional to 3,989,517 and 6,318,272
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Solution
The third proportional to 3,989,517 and 6,318,272 is: 10,006,364.45
Step by Step Solution
- Step 1: Write the proportion equation
3,989,517 : 6,318,272 = 6,318,272 : x - Step 2: Convert to fraction form
3,989,517/6,318,272 = 6,318,272/x - Step 3: Cross multiply
3,989,517x = 6,318,272 × 6,318,272 - Step 4: Simplify right side
3,989,517x = 39,920,561,065,984 - Step 5: Solve for x
x = 39,920,561,065,984/3,989,517 - Step 6: Final answer
x = 10,006,364.45
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Why These Related Problems?
These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.