Finding the Fourth Proportional to 128,662,850.56, 177,556,105.76 and 69,925,519.04
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Solution
The fourth proportional to 128,662,850.56, 177,556,105.76 and 69,925,519.04 is: 96,497,961.92
Step by Step Solution
- Step 1: Write the proportion equation
128,662,850.56 : 177,556,105.76 = 69,925,519.04 : x - Step 2: Convert to fraction form
128,662,850.56/177,556,105.76 = 69,925,519.04/x - Step 3: Cross multiply
128,662,850.56x = 177,556,105.76 × 69,925,519.04 - Step 4: Simplify right side
128,662,850.56x = 12,415,702,853,989,134 - Step 5: Solve for x
x = 12,415,702,853,989,134/128,662,850.56 - Step 6: Final answer
x = 96,497,961.92
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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.