Finding the Fourth Proportional to 168,236,609.20, 252,378,533.40 and 53,209,157.20
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Solution
The fourth proportional to 168,236,609.20, 252,378,533.40 and 53,209,157.20 is: 79,821,206.11
Step by Step Solution
- Step 1: Write the proportion equation
168,236,609.20 : 252,378,533.40 = 53,209,157.20 : x - Step 2: Convert to fraction form
168,236,609.20/252,378,533.40 = 53,209,157.20/x - Step 3: Cross multiply
168,236,609.20x = 252,378,533.40 × 53,209,157.20 - Step 4: Simplify right side
168,236,609.20x = 13,428,849,057,586,052 - Step 5: Solve for x
x = 13,428,849,057,586,052/168,236,609.20 - Step 6: Final answer
x = 79,821,206.11
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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.