Finding the Fourth Proportional to 3,805,624,781.88, 5,250,585,228.30 and 2,218,593,388.92
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Solution
The fourth proportional to 3,805,624,781.88, 5,250,585,228.30 and 2,218,593,388.92 is: 3,060,972,729.35
Step by Step Solution
- Step 1: Write the proportion equation
3,805,624,781.88 : 5,250,585,228.30 = 2,218,593,388.92 : x - Step 2: Convert to fraction form
3,805,624,781.88/5,250,585,228.30 = 2,218,593,388.92/x - Step 3: Cross multiply
3,805,624,781.88x = 5,250,585,228.30 × 2,218,593,388.92 - Step 4: Simplify right side
3,805,624,781.88x = 11,648,913,675,467,388,928 - Step 5: Solve for x
x = 11,648,913,675,467,388,928/3,805,624,781.88 - Step 6: Final answer
x = 3,060,972,729.35
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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.