Finding the Fourth Proportional to 18,985,145.05, 26,199,500.97 and 10,283,317.66
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Solution
The fourth proportional to 18,985,145.05, 26,199,500.97 and 10,283,317.66 is: 14,190,978.80
Step by Step Solution
- Step 1: Write the proportion equation
18,985,145.05 : 26,199,500.97 = 10,283,317.66 : x - Step 2: Convert to fraction form
18,985,145.05/26,199,500.97 = 10,283,317.66/x - Step 3: Cross multiply
18,985,145.05x = 26,199,500.97 × 10,283,317.66 - Step 4: Simplify right side
18,985,145.05x = 269,417,791,007,988.12 - Step 5: Solve for x
x = 269,417,791,007,988.12/18,985,145.05 - Step 6: Final answer
x = 14,190,978.80
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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.