Finding the Fourth Proportional to 393,984,108.80, 590,976,163.20 and 106,769,772.80
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Solution
The fourth proportional to 393,984,108.80, 590,976,163.20 and 106,769,772.80 is: 160,154,659.20
Step by Step Solution
- Step 1: Write the proportion equation
393,984,108.80 : 590,976,163.20 = 106,769,772.80 : x - Step 2: Convert to fraction form
393,984,108.80/590,976,163.20 = 106,769,772.80/x - Step 3: Cross multiply
393,984,108.80x = 590,976,163.20 × 106,769,772.80 - Step 4: Simplify right side
393,984,108.80x = 63,098,390,675,079,728 - Step 5: Solve for x
x = 63,098,390,675,079,728/393,984,108.80 - Step 6: Final answer
x = 160,154,659.20
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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.