Finding the Fourth Proportional to 186,998,917.12, 258,053,555.20 and 104,493,378.56
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Solution
The fourth proportional to 186,998,917.12, 258,053,555.20 and 104,493,378.56 is: 144,198,096.16
Step by Step Solution
- Step 1: Write the proportion equation
186,998,917.12 : 258,053,555.20 = 104,493,378.56 : x - Step 2: Convert to fraction form
186,998,917.12/258,053,555.20 = 104,493,378.56/x - Step 3: Cross multiply
186,998,917.12x = 258,053,555.20 × 104,493,378.56 - Step 4: Simplify right side
186,998,917.12x = 26,964,887,832,267,456 - Step 5: Solve for x
x = 26,964,887,832,267,456/186,998,917.12 - Step 6: Final answer
x = 144,198,096.16
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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.