Finding the Fourth Proportional to 98,611,700.07, 136,088,151.84 and 54,557,981.42
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Solution
The fourth proportional to 98,611,700.07, 136,088,151.84 and 54,557,981.42 is: 75,292,230.58
Step by Step Solution
- Step 1: Write the proportion equation
98,611,700.07 : 136,088,151.84 = 54,557,981.42 : x - Step 2: Convert to fraction form
98,611,700.07/136,088,151.84 = 54,557,981.42/x - Step 3: Cross multiply
98,611,700.07x = 136,088,151.84 × 54,557,981.42 - Step 4: Simplify right side
98,611,700.07x = 7,424,694,859,909,079 - Step 5: Solve for x
x = 7,424,694,859,909,079/98,611,700.07 - Step 6: Final answer
x = 75,292,230.58
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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.