Finding the Fourth Proportional to 126,588,708.20, 189,883,062.30 and 121,486,874.60
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Solution
The fourth proportional to 126,588,708.20, 189,883,062.30 and 121,486,874.60 is: 182,230,311.90
Step by Step Solution
- Step 1: Write the proportion equation
126,588,708.20 : 189,883,062.30 = 121,486,874.60 : x - Step 2: Convert to fraction form
126,588,708.20/189,883,062.30 = 121,486,874.60/x - Step 3: Cross multiply
126,588,708.20x = 189,883,062.30 × 121,486,874.60 - Step 4: Simplify right side
126,588,708.20x = 23,068,299,778,304,088 - Step 5: Solve for x
x = 23,068,299,778,304,088/126,588,708.20 - Step 6: Final answer
x = 182,230,311.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.