Finding the Fourth Proportional to 53,980,861.40, 80,971,292.10 and 48,774,051.80
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Solution
The fourth proportional to 53,980,861.40, 80,971,292.10 and 48,774,051.80 is: 73,161,077.70
Step by Step Solution
- Step 1: Write the proportion equation
53,980,861.40 : 80,971,292.10 = 48,774,051.80 : x - Step 2: Convert to fraction form
53,980,861.40/80,971,292.10 = 48,774,051.80/x - Step 3: Cross multiply
53,980,861.40x = 80,971,292.10 × 48,774,051.80 - Step 4: Simplify right side
53,980,861.40x = 3,949,297,995,198,330 - Step 5: Solve for x
x = 3,949,297,995,198,330/53,980,861.40 - Step 6: Final answer
x = 73,161,077.70
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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.