Finding the Fourth Proportional to 168,420,888.20, 252,253,418.70 and 138,187,800.20
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Solution
The fourth proportional to 168,420,888.20, 252,253,418.70 and 138,187,800.20 is: 206,971,625.64
Step by Step Solution
- Step 1: Write the proportion equation
168,420,888.20 : 252,253,418.70 = 138,187,800.20 : x - Step 2: Convert to fraction form
168,420,888.20/252,253,418.70 = 138,187,800.20/x - Step 3: Cross multiply
168,420,888.20x = 252,253,418.70 × 138,187,800.20 - Step 4: Simplify right side
168,420,888.20x = 34,858,345,023,082,540 - Step 5: Solve for x
x = 34,858,345,023,082,540/168,420,888.20 - Step 6: Final answer
x = 206,971,625.64
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.