Finding the Fourth Proportional to 10,098,744.90, 13,936,378.77 and 5,515,201.14
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Solution
The fourth proportional to 10,098,744.90, 13,936,378.77 and 5,515,201.14 is: 7,611,038.09
Step by Step Solution
- Step 1: Write the proportion equation
10,098,744.90 : 13,936,378.77 = 5,515,201.14 : x - Step 2: Convert to fraction form
10,098,744.90/13,936,378.77 = 5,515,201.14/x - Step 3: Cross multiply
10,098,744.90x = 13,936,378.77 × 5,515,201.14 - Step 4: Simplify right side
10,098,744.90x = 76,861,932,079,775.80 - Step 5: Solve for x
x = 76,861,932,079,775.80/10,098,744.90 - Step 6: Final answer
x = 7,611,038.09
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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.