Finding the Fourth Proportional to 168,236,611.20, 252,378,536.40 and 53,209,159.20
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Solution
The fourth proportional to 168,236,611.20, 252,378,536.40 and 53,209,159.20 is: 79,821,209.11
Step by Step Solution
- Step 1: Write the proportion equation
168,236,611.20 : 252,378,536.40 = 53,209,159.20 : x - Step 2: Convert to fraction form
168,236,611.20/252,378,536.40 = 53,209,159.20/x - Step 3: Cross multiply
168,236,611.20x = 252,378,536.40 × 53,209,159.20 - Step 4: Simplify right side
168,236,611.20x = 13,428,849,721,970,596 - Step 5: Solve for x
x = 13,428,849,721,970,596/168,236,611.20 - Step 6: Final answer
x = 79,821,209.11
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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.