Finding the Fourth Proportional to 129,884,938.24, 179,173,258.24 and 80,309,464.96
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Solution
The fourth proportional to 129,884,938.24, 179,173,258.24 and 80,309,464.96 is: 110,785,043.28
Step by Step Solution
- Step 1: Write the proportion equation
129,884,938.24 : 179,173,258.24 = 80,309,464.96 : x - Step 2: Convert to fraction form
129,884,938.24/179,173,258.24 = 80,309,464.96/x - Step 3: Cross multiply
129,884,938.24x = 179,173,258.24 × 80,309,464.96 - Step 4: Simplify right side
129,884,938.24x = 14,389,308,504,394,310 - Step 5: Solve for x
x = 14,389,308,504,394,310/129,884,938.24 - Step 6: Final answer
x = 110,785,043.28
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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.