Finding the Fourth Proportional to 72,732,213.99, 100,372,583.16 and 39,694,582.08
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Solution
The fourth proportional to 72,732,213.99, 100,372,583.16 and 39,694,582.08 is: 54,779,684.58
Step by Step Solution
- Step 1: Write the proportion equation
72,732,213.99 : 100,372,583.16 = 39,694,582.08 : x - Step 2: Convert to fraction form
72,732,213.99/100,372,583.16 = 39,694,582.08/x - Step 3: Cross multiply
72,732,213.99x = 100,372,583.16 × 39,694,582.08 - Step 4: Simplify right side
72,732,213.99x = 3,984,247,740,826,245.50 - Step 5: Solve for x
x = 3,984,247,740,826,245.50/72,732,213.99 - Step 6: Final answer
x = 54,779,684.58
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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.