Finding the Fourth Proportional to 73,865,311.70, 101,939,404.97 and 40,824,851.09
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Solution
The fourth proportional to 73,865,311.70, 101,939,404.97 and 40,824,851.09 is: 56,341,209.86
Step by Step Solution
- Step 1: Write the proportion equation
73,865,311.70 : 101,939,404.97 = 40,824,851.09 : x - Step 2: Convert to fraction form
73,865,311.70/101,939,404.97 = 40,824,851.09/x - Step 3: Cross multiply
73,865,311.70x = 101,939,404.97 × 40,824,851.09 - Step 4: Simplify right side
73,865,311.70x = 4,161,661,027,695,821 - Step 5: Solve for x
x = 4,161,661,027,695,821/73,865,311.70 - Step 6: Final answer
x = 56,341,209.86
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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.