Finding the Fourth Proportional to 77,536,099.48, 106,999,839.50 and 42,253,914.26
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Solution
The fourth proportional to 77,536,099.48, 106,999,839.50 and 42,253,914.26 is: 58,310,413.79
Step by Step Solution
- Step 1: Write the proportion equation
77,536,099.48 : 106,999,839.50 = 42,253,914.26 : x - Step 2: Convert to fraction form
77,536,099.48/106,999,839.50 = 42,253,914.26/x - Step 3: Cross multiply
77,536,099.48x = 106,999,839.50 × 42,253,914.26 - Step 4: Simplify right side
77,536,099.48x = 4,521,162,044,066,761 - Step 5: Solve for x
x = 4,521,162,044,066,761/77,536,099.48 - Step 6: Final answer
x = 58,310,413.79
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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.