Finding the Fourth Proportional to 31,480,614.12, 43,463,305.98 and 25,693,200.84
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Solution
The fourth proportional to 31,480,614.12, 43,463,305.98 and 25,693,200.84 is: 35,472,988.09
Step by Step Solution
- Step 1: Write the proportion equation
31,480,614.12 : 43,463,305.98 = 25,693,200.84 : x - Step 2: Convert to fraction form
31,480,614.12/43,463,305.98 = 25,693,200.84/x - Step 3: Cross multiply
31,480,614.12x = 43,463,305.98 × 25,693,200.84 - Step 4: Simplify right side
31,480,614.12x = 1,116,711,449,714,512.88 - Step 5: Solve for x
x = 1,116,711,449,714,512.88/31,480,614.12 - Step 6: Final answer
x = 35,472,988.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.