Finding the Fourth Proportional to 5,120,209.68, 7,677,743.12 and 1,707,288.06
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Solution
The fourth proportional to 5,120,209.68, 7,677,743.12 and 1,707,288.06 is: 2,560,074.68
Step by Step Solution
- Step 1: Write the proportion equation
5,120,209.68 : 7,677,743.12 = 1,707,288.06 : x - Step 2: Convert to fraction form
5,120,209.68/7,677,743.12 = 1,707,288.06/x - Step 3: Cross multiply
5,120,209.68x = 7,677,743.12 × 1,707,288.06 - Step 4: Simplify right side
5,120,209.68x = 13,108,119,156,523.15 - Step 5: Solve for x
x = 13,108,119,156,523.15/5,120,209.68 - Step 6: Final answer
x = 2,560,074.68
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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.