Finding the Fourth Proportional to 98,611,700.82, 136,088,152.88 and 54,557,982.18
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Solution
The fourth proportional to 98,611,700.82, 136,088,152.88 and 54,557,982.18 is: 75,292,231.63
Step by Step Solution
- Step 1: Write the proportion equation
98,611,700.82 : 136,088,152.88 = 54,557,982.18 : x - Step 2: Convert to fraction form
98,611,700.82/136,088,152.88 = 54,557,982.18/x - Step 3: Cross multiply
98,611,700.82x = 136,088,152.88 × 54,557,982.18 - Step 4: Simplify right side
98,611,700.82x = 7,424,695,019,463,366 - Step 5: Solve for x
x = 7,424,695,019,463,366/98,611,700.82 - Step 6: Final answer
x = 75,292,231.63
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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.