Finding the Fourth Proportional to 4,008,631.68, 5,532,138 and 2,378,004.48
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Solution
The fourth proportional to 4,008,631.68, 5,532,138 and 2,378,004.48 is: 3,281,780.42
Step by Step Solution
- Step 1: Write the proportion equation
4,008,631.68 : 5,532,138 = 2,378,004.48 : x - Step 2: Convert to fraction form
4,008,631.68/5,532,138 = 2,378,004.48/x - Step 3: Cross multiply
4,008,631.68x = 5,532,138 × 2,378,004.48 - Step 4: Simplify right side
4,008,631.68x = 13,155,448,947,978.24 - Step 5: Solve for x
x = 13,155,448,947,978.24/4,008,631.68 - Step 6: Final answer
x = 3,281,780.42
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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.