Finding the Fourth Proportional to 161,639,245.32, 223,058,797.56 and 91,078,489.68
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Solution
The fourth proportional to 161,639,245.32, 223,058,797.56 and 91,078,489.68 is: 125,686,421.95
Step by Step Solution
- Step 1: Write the proportion equation
161,639,245.32 : 223,058,797.56 = 91,078,489.68 : x - Step 2: Convert to fraction form
161,639,245.32/223,058,797.56 = 91,078,489.68/x - Step 3: Cross multiply
161,639,245.32x = 223,058,797.56 × 91,078,489.68 - Step 4: Simplify right side
161,639,245.32x = 20,315,858,391,601,672 - Step 5: Solve for x
x = 20,315,858,391,601,672/161,639,245.32 - Step 6: Final answer
x = 125,686,421.95
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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.