Finding the Fourth Proportional to 19,401,811.20, 29,102,716.80 and 6,622,732.80
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Solution
The fourth proportional to 19,401,811.20, 29,102,716.80 and 6,622,732.80 is: 9,934,099.20
Step by Step Solution
- Step 1: Write the proportion equation
19,401,811.20 : 29,102,716.80 = 6,622,732.80 : x - Step 2: Convert to fraction form
19,401,811.20/29,102,716.80 = 6,622,732.80/x - Step 3: Cross multiply
19,401,811.20x = 29,102,716.80 × 6,622,732.80 - Step 4: Simplify right side
19,401,811.20x = 192,739,517,120,471.03 - Step 5: Solve for x
x = 192,739,517,120,471.03/19,401,811.20 - Step 6: Final answer
x = 9,934,099.20
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1.5x scale
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.