Finding the Fourth Proportional to 149,455,436.55, 206,222,957.24 and 86,717,151.62
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Solution
The fourth proportional to 149,455,436.55, 206,222,957.24 and 86,717,151.62 is: 119,654,847.38
Step by Step Solution
- Step 1: Write the proportion equation
149,455,436.55 : 206,222,957.24 = 86,717,151.62 : x - Step 2: Convert to fraction form
149,455,436.55/206,222,957.24 = 86,717,151.62/x - Step 3: Cross multiply
149,455,436.55x = 206,222,957.24 × 86,717,151.62 - Step 4: Simplify right side
149,455,436.55x = 17,883,067,449,814,494 - Step 5: Solve for x
x = 17,883,067,449,814,494/149,455,436.55 - Step 6: Final answer
x = 119,654,847.38
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1.5x scale
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.