Finding the Fourth Proportional to 53,639,700.20, 80,459,550.30 and 19,562,157.80
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Solution
The fourth proportional to 53,639,700.20, 80,459,550.30 and 19,562,157.80 is: 29,343,236.70
Step by Step Solution
- Step 1: Write the proportion equation
53,639,700.20 : 80,459,550.30 = 19,562,157.80 : x - Step 2: Convert to fraction form
53,639,700.20/80,459,550.30 = 19,562,157.80/x - Step 3: Cross multiply
53,639,700.20x = 80,459,550.30 × 19,562,157.80 - Step 4: Simplify right side
53,639,700.20x = 1,573,962,419,485,637.25 - Step 5: Solve for x
x = 1,573,962,419,485,637.25/53,639,700.20 - Step 6: Final answer
x = 29,343,236.70
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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.