Finding the Fourth Proportional to 3,668,448,476.87, 5,061,786,411.61 and 2,163,545,739.53
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Solution
The fourth proportional to 3,668,448,476.87, 5,061,786,411.61 and 2,163,545,739.53 is: 2,985,296,507.31
Step by Step Solution
- Step 1: Write the proportion equation
3,668,448,476.87 : 5,061,786,411.61 = 2,163,545,739.53 : x - Step 2: Convert to fraction form
3,668,448,476.87/5,061,786,411.61 = 2,163,545,739.53/x - Step 3: Cross multiply
3,668,448,476.87x = 5,061,786,411.61 × 2,163,545,739.53 - Step 4: Simplify right side
3,668,448,476.87x = 10,951,406,425,245,677,568 - Step 5: Solve for x
x = 10,951,406,425,245,677,568/3,668,448,476.87 - Step 6: Final answer
x = 2,985,296,507.31
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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.