Finding the Fourth Proportional to 18,439,477.20, 27,659,215.80 and 7,800,526.80
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Solution
The fourth proportional to 18,439,477.20, 27,659,215.80 and 7,800,526.80 is: 11,700,790.20
Step by Step Solution
- Step 1: Write the proportion equation
18,439,477.20 : 27,659,215.80 = 7,800,526.80 : x - Step 2: Convert to fraction form
18,439,477.20/27,659,215.80 = 7,800,526.80/x - Step 3: Cross multiply
18,439,477.20x = 27,659,215.80 × 7,800,526.80 - Step 4: Simplify right side
18,439,477.20x = 215,756,454,114,883.44 - Step 5: Solve for x
x = 215,756,454,114,883.44/18,439,477.20 - Step 6: Final answer
x = 11,700,790.20
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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.