Finding the Fourth Proportional to 5,423,481.72, 8,135,695.40 and 1,779,118.92
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Solution
The fourth proportional to 5,423,481.72, 8,135,695.40 and 1,779,118.92 is: 2,668,833.48
Step by Step Solution
- Step 1: Write the proportion equation
5,423,481.72 : 8,135,695.40 = 1,779,118.92 : x - Step 2: Convert to fraction form
5,423,481.72/8,135,695.40 = 1,779,118.92/x - Step 3: Cross multiply
5,423,481.72x = 8,135,695.40 × 1,779,118.92 - Step 4: Simplify right side
5,423,481.72x = 14,474,369,613,496.97 - Step 5: Solve for x
x = 14,474,369,613,496.97/5,423,481.72 - Step 6: Final answer
x = 2,668,833.48
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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.