Finding the Fourth Proportional to 36,941,418.74, 50,979,227.01 and 20,643,894.74
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Solution
The fourth proportional to 36,941,418.74, 50,979,227.01 and 20,643,894.74 is: 28,488,613.38
Step by Step Solution
- Step 1: Write the proportion equation
36,941,418.74 : 50,979,227.01 = 20,643,894.74 : x - Step 2: Convert to fraction form
36,941,418.74/50,979,227.01 = 20,643,894.74/x - Step 3: Cross multiply
36,941,418.74x = 50,979,227.01 × 20,643,894.74 - Step 4: Simplify right side
36,941,418.74x = 1,052,409,796,321,004.75 - Step 5: Solve for x
x = 1,052,409,796,321,004.75/36,941,418.74 - Step 6: Final answer
x = 28,488,613.38
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Double scale
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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.