Finding the Fourth Proportional to 738,320,870.80, 1,107,397,325.40 and 193,117,517.20
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Solution
The fourth proportional to 738,320,870.80, 1,107,397,325.40 and 193,117,517.20 is: 289,654,309.52
Step by Step Solution
- Step 1: Write the proportion equation
738,320,870.80 : 1,107,397,325.40 = 193,117,517.20 : x - Step 2: Convert to fraction form
738,320,870.80/1,107,397,325.40 = 193,117,517.20/x - Step 3: Cross multiply
738,320,870.80x = 1,107,397,325.40 × 193,117,517.20 - Step 4: Simplify right side
738,320,870.80x = 213,857,822,035,168,512 - Step 5: Solve for x
x = 213,857,822,035,168,512/738,320,870.80 - Step 6: Final answer
x = 289,654,309.52
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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.