Finding the Fourth Proportional to 49,744,040.60, 68,646,918.21 and 28,840,135.70
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Solution
The fourth proportional to 49,744,040.60, 68,646,918.21 and 28,840,135.70 is: 39,799,469.70
Step by Step Solution
- Step 1: Write the proportion equation
49,744,040.60 : 68,646,918.21 = 28,840,135.70 : x - Step 2: Convert to fraction form
49,744,040.60/68,646,918.21 = 28,840,135.70/x - Step 3: Cross multiply
49,744,040.60x = 68,646,918.21 × 28,840,135.70 - Step 4: Simplify right side
49,744,040.60x = 1,979,786,436,563,200.75 - Step 5: Solve for x
x = 1,979,786,436,563,200.75/49,744,040.60 - Step 6: Final answer
x = 39,799,469.70
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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.