Finding the Fourth Proportional to 3,240,129,049.12, 4,471,378,238.64 and 1,755,017,176.24
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Solution
The fourth proportional to 3,240,129,049.12, 4,471,378,238.64 and 1,755,017,176.24 is: 2,421,923,784.92
Step by Step Solution
- Step 1: Write the proportion equation
3,240,129,049.12 : 4,471,378,238.64 = 1,755,017,176.24 : x - Step 2: Convert to fraction form
3,240,129,049.12/4,471,378,238.64 = 1,755,017,176.24/x - Step 3: Cross multiply
3,240,129,049.12x = 4,471,378,238.64 × 1,755,017,176.24 - Step 4: Simplify right side
3,240,129,049.12x = 7,847,345,610,278,958,080 - Step 5: Solve for x
x = 7,847,345,610,278,958,080/3,240,129,049.12 - Step 6: Final answer
x = 2,421,923,784.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.