Finding the Fourth Proportional to 22,642,728.86, 34,115,334.84 and 20,486,517.84
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Solution
The fourth proportional to 22,642,728.86, 34,115,334.84 and 20,486,517.84 is: 30,866,615.95
Step by Step Solution
- Step 1: Write the proportion equation
22,642,728.86 : 34,115,334.84 = 20,486,517.84 : x - Step 2: Convert to fraction form
22,642,728.86/34,115,334.84 = 20,486,517.84/x - Step 3: Cross multiply
22,642,728.86x = 34,115,334.84 × 20,486,517.84 - Step 4: Simplify right side
22,642,728.86x = 698,904,415,817,233.62 - Step 5: Solve for x
x = 698,904,415,817,233.62/22,642,728.86 - Step 6: Final answer
x = 30,866,615.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.