Finding the Fourth Proportional to 543,812,760.68, 815,718,402.57 and 252,520,599.02
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Solution
The fourth proportional to 543,812,760.68, 815,718,402.57 and 252,520,599.02 is: 378,780,555.63
Step by Step Solution
- Step 1: Write the proportion equation
543,812,760.68 : 815,718,402.57 = 252,520,599.02 : x - Step 2: Convert to fraction form
543,812,760.68/815,718,402.57 = 252,520,599.02/x - Step 3: Cross multiply
543,812,760.68x = 815,718,402.57 × 252,520,599.02 - Step 4: Simplify right side
543,812,760.68x = 205,985,699,648,613,920 - Step 5: Solve for x
x = 205,985,699,648,613,920/543,812,760.68 - Step 6: Final answer
x = 378,780,555.63
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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.