Finding the Fourth Proportional to 3,805,624,780.38, 5,250,585,226.23 and 2,218,593,387.42
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Solution
The fourth proportional to 3,805,624,780.38, 5,250,585,226.23 and 2,218,593,387.42 is: 3,060,972,727.28
Step by Step Solution
- Step 1: Write the proportion equation
3,805,624,780.38 : 5,250,585,226.23 = 2,218,593,387.42 : x - Step 2: Convert to fraction form
3,805,624,780.38/5,250,585,226.23 = 2,218,593,387.42/x - Step 3: Cross multiply
3,805,624,780.38x = 5,250,585,226.23 × 2,218,593,387.42 - Step 4: Simplify right side
3,805,624,780.38x = 11,648,913,662,999,021,568 - Step 5: Solve for x
x = 11,648,913,662,999,021,568/3,805,624,780.38 - Step 6: Final answer
x = 3,060,972,727.28
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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.