Finding the Fourth Proportional to 36,698,421.20, 50,642,524.98 and 20,178,430.10
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Solution
The fourth proportional to 36,698,421.20, 50,642,524.98 and 20,178,430.10 is: 27,845,520.79
Step by Step Solution
- Step 1: Write the proportion equation
36,698,421.20 : 50,642,524.98 = 20,178,430.10 : x - Step 2: Convert to fraction form
36,698,421.20/50,642,524.98 = 20,178,430.10/x - Step 3: Cross multiply
36,698,421.20x = 50,642,524.98 × 20,178,430.10 - Step 4: Simplify right side
36,698,421.20x = 1,021,886,650,396,433.88 - Step 5: Solve for x
x = 1,021,886,650,396,433.88/36,698,421.20 - Step 6: Final answer
x = 27,845,520.79
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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.