Finding the Fourth Proportional to 320,206,861.84, 441,885,847.20 and 173,529,145.84
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Solution
The fourth proportional to 320,206,861.84, 441,885,847.20 and 173,529,145.84 is: 239,470,426.03
Step by Step Solution
- Step 1: Write the proportion equation
320,206,861.84 : 441,885,847.20 = 173,529,145.84 : x - Step 2: Convert to fraction form
320,206,861.84/441,885,847.20 = 173,529,145.84/x - Step 3: Cross multiply
320,206,861.84x = 441,885,847.20 × 173,529,145.84 - Step 4: Simplify right side
320,206,861.84x = 76,680,073,623,400,752 - Step 5: Solve for x
x = 76,680,073,623,400,752/320,206,861.84 - Step 6: Final answer
x = 239,470,426.03
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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.