Finding the Fourth Proportional to 394,416,088.80, 591,624,133.20 and 213,017,560.80
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Solution
The fourth proportional to 394,416,088.80, 591,624,133.20 and 213,017,560.80 is: 319,526,341.20
Step by Step Solution
- Step 1: Write the proportion equation
394,416,088.80 : 591,624,133.20 = 213,017,560.80 : x - Step 2: Convert to fraction form
394,416,088.80/591,624,133.20 = 213,017,560.80/x - Step 3: Cross multiply
394,416,088.80x = 591,624,133.20 × 213,017,560.80 - Step 4: Simplify right side
394,416,088.80x = 126,026,329,764,678,320 - Step 5: Solve for x
x = 126,026,329,764,678,320/394,416,088.80 - Step 6: Final answer
x = 319,526,341.20
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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.