Finding the Fourth Proportional to 136,821,092.51, 188,810,774.06 and 74,096,680.79
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Solution
The fourth proportional to 136,821,092.51, 188,810,774.06 and 74,096,680.79 is: 102,252,155.70
Step by Step Solution
- Step 1: Write the proportion equation
136,821,092.51 : 188,810,774.06 = 74,096,680.79 : x - Step 2: Convert to fraction form
136,821,092.51/188,810,774.06 = 74,096,680.79/x - Step 3: Cross multiply
136,821,092.51x = 188,810,774.06 × 74,096,680.79 - Step 4: Simplify right side
136,821,092.51x = 13,990,251,653,922,094 - Step 5: Solve for x
x = 13,990,251,653,922,094/136,821,092.51 - Step 6: Final answer
x = 102,252,155.70
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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.