Finding the Fourth Proportional to 190,268,998.20, 285,403,497.30 and 108,639,660.60
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Solution
The fourth proportional to 190,268,998.20, 285,403,497.30 and 108,639,660.60 is: 162,959,490.90
Step by Step Solution
- Step 1: Write the proportion equation
190,268,998.20 : 285,403,497.30 = 108,639,660.60 : x - Step 2: Convert to fraction form
190,268,998.20/285,403,497.30 = 108,639,660.60/x - Step 3: Cross multiply
190,268,998.20x = 285,403,497.30 × 108,639,660.60 - Step 4: Simplify right side
190,268,998.20x = 31,006,139,080,725,016 - Step 5: Solve for x
x = 31,006,139,080,725,016/190,268,998.20 - Step 6: Final answer
x = 162,959,490.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.