Finding the Fourth Proportional to 74,069,849.86, 102,251,837.42 and 49,331,205.70
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Solution
The fourth proportional to 74,069,849.86, 102,251,837.42 and 49,331,205.70 is: 68,100,670.31
Step by Step Solution
- Step 1: Write the proportion equation
74,069,849.86 : 102,251,837.42 = 49,331,205.70 : x - Step 2: Convert to fraction form
74,069,849.86/102,251,837.42 = 49,331,205.70/x - Step 3: Cross multiply
74,069,849.86x = 102,251,837.42 × 49,331,205.70 - Step 4: Simplify right side
74,069,849.86x = 5,044,206,424,968,978 - Step 5: Solve for x
x = 5,044,206,424,968,978/74,069,849.86 - Step 6: Final answer
x = 68,100,670.31
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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.