Finding the Fourth Proportional to 72,965,220.16, 100,694,262.57 and 39,926,861.80
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Solution
The fourth proportional to 72,965,220.16, 100,694,262.57 and 39,926,861.80 is: 55,100,305.28
Step by Step Solution
- Step 1: Write the proportion equation
72,965,220.16 : 100,694,262.57 = 39,926,861.80 : x - Step 2: Convert to fraction form
72,965,220.16/100,694,262.57 = 39,926,861.80/x - Step 3: Cross multiply
72,965,220.16x = 100,694,262.57 × 39,926,861.80 - Step 4: Simplify right side
72,965,220.16x = 4,020,405,905,685,302 - Step 5: Solve for x
x = 4,020,405,905,685,302/72,965,220.16 - Step 6: Final answer
x = 55,100,305.28
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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.