Finding the Fourth Proportional to 218,983,135.84, 302,204,414.32 and 119,863,964.32
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Solution
The fourth proportional to 218,983,135.84, 302,204,414.32 and 119,863,964.32 is: 165,416,478.29
Step by Step Solution
- Step 1: Write the proportion equation
218,983,135.84 : 302,204,414.32 = 119,863,964.32 : x - Step 2: Convert to fraction form
218,983,135.84/302,204,414.32 = 119,863,964.32/x - Step 3: Cross multiply
218,983,135.84x = 302,204,414.32 × 119,863,964.32 - Step 4: Simplify right side
218,983,135.84x = 36,223,419,135,398,976 - Step 5: Solve for x
x = 36,223,419,135,398,976/218,983,135.84 - Step 6: Final answer
x = 165,416,478.29
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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.