Finding the Fourth Proportional to 5,471,879.72, 8,209,480.18 and 2,912,659.20
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Solution
The fourth proportional to 5,471,879.72, 8,209,480.18 and 2,912,659.20 is: 4,369,872.73
Step by Step Solution
- Step 1: Write the proportion equation
5,471,879.72 : 8,209,480.18 = 2,912,659.20 : x - Step 2: Convert to fraction form
5,471,879.72/8,209,480.18 = 2,912,659.20/x - Step 3: Cross multiply
5,471,879.72x = 8,209,480.18 × 2,912,659.20 - Step 4: Simplify right side
5,471,879.72x = 23,911,417,973,494.66 - Step 5: Solve for x
x = 23,911,417,973,494.66/5,471,879.72 - Step 6: Final answer
x = 4,369,872.73
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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.