Finding the Fourth Proportional to 49,907,815.80, 74,861,723.70 and 12,085,351.80
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Solution
The fourth proportional to 49,907,815.80, 74,861,723.70 and 12,085,351.80 is: 18,128,027.70
Step by Step Solution
- Step 1: Write the proportion equation
49,907,815.80 : 74,861,723.70 = 12,085,351.80 : x - Step 2: Convert to fraction form
49,907,815.80/74,861,723.70 = 12,085,351.80/x - Step 3: Cross multiply
49,907,815.80x = 74,861,723.70 × 12,085,351.80 - Step 4: Simplify right side
49,907,815.80x = 904,730,267,268,897.75 - Step 5: Solve for x
x = 904,730,267,268,897.75/49,907,815.80 - Step 6: Final answer
x = 18,128,027.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.