Finding the Fourth Proportional to 18,378,569.28, 27,567,847.44 and 4,915,047.36
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Solution
The fourth proportional to 18,378,569.28, 27,567,847.44 and 4,915,047.36 is: 7,372,569.31
Step by Step Solution
- Step 1: Write the proportion equation
18,378,569.28 : 27,567,847.44 = 4,915,047.36 : x - Step 2: Convert to fraction form
18,378,569.28/27,567,847.44 = 4,915,047.36/x - Step 3: Cross multiply
18,378,569.28x = 27,567,847.44 × 4,915,047.36 - Step 4: Simplify right side
18,378,569.28x = 135,497,275,780,854.78 - Step 5: Solve for x
x = 135,497,275,780,854.78/18,378,569.28 - Step 6: Final answer
x = 7,372,569.31
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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.