Finding the Fourth Proportional to 18,844,957.80, 26,022,205.80 and 18,235,572.12
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Solution
The fourth proportional to 18,844,957.80, 26,022,205.80 and 18,235,572.12 is: 25,180,730.87
Step by Step Solution
- Step 1: Write the proportion equation
18,844,957.80 : 26,022,205.80 = 18,235,572.12 : x - Step 2: Convert to fraction form
18,844,957.80/26,022,205.80 = 18,235,572.12/x - Step 3: Cross multiply
18,844,957.80x = 26,022,205.80 × 18,235,572.12 - Step 4: Simplify right side
18,844,957.80x = 474,529,810,587,382.31 - Step 5: Solve for x
x = 474,529,810,587,382.31/18,844,957.80 - Step 6: Final answer
x = 25,180,730.87
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1.5x scale
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.