Finding the Fourth Proportional to 218,314,640.70, 327,471,961.05 and 109,156,659.30
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Solution
The fourth proportional to 218,314,640.70, 327,471,961.05 and 109,156,659.30 is: 163,734,988.95
Step by Step Solution
- Step 1: Write the proportion equation
218,314,640.70 : 327,471,961.05 = 109,156,659.30 : x - Step 2: Convert to fraction form
218,314,640.70/327,471,961.05 = 109,156,659.30/x - Step 3: Cross multiply
218,314,640.70x = 327,471,961.05 × 109,156,659.30 - Step 4: Simplify right side
218,314,640.70x = 35,745,745,282,637,720 - Step 5: Solve for x
x = 35,745,745,282,637,720/218,314,640.70 - Step 6: Final answer
x = 163,734,988.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.