Finding the Fourth Proportional to 18,879,965.44, 26,056,366.86 and 11,041,874.08
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Solution
The fourth proportional to 18,879,965.44, 26,056,366.86 and 11,041,874.08 is: 15,238,964.43
Step by Step Solution
- Step 1: Write the proportion equation
18,879,965.44 : 26,056,366.86 = 11,041,874.08 : x - Step 2: Convert to fraction form
18,879,965.44/26,056,366.86 = 11,041,874.08/x - Step 3: Cross multiply
18,879,965.44x = 26,056,366.86 × 11,041,874.08 - Step 4: Simplify right side
18,879,965.44x = 287,711,121,850,405 - Step 5: Solve for x
x = 287,711,121,850,405/18,879,965.44 - Step 6: Final answer
x = 15,238,964.43
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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.