Finding the Fourth Proportional to 73,021,805.34, 100,770,115.82 and 39,984,144.09
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Solution
The fourth proportional to 73,021,805.34, 100,770,115.82 and 39,984,144.09 is: 55,178,132.23
Step by Step Solution
- Step 1: Write the proportion equation
73,021,805.34 : 100,770,115.82 = 39,984,144.09 : x - Step 2: Convert to fraction form
73,021,805.34/100,770,115.82 = 39,984,144.09/x - Step 3: Cross multiply
73,021,805.34x = 100,770,115.82 × 39,984,144.09 - Step 4: Simplify right side
73,021,805.34x = 4,029,206,830,712,948 - Step 5: Solve for x
x = 4,029,206,830,712,948/73,021,805.34 - Step 6: Final answer
x = 55,178,132.23
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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.