Finding the Fourth Proportional to 2,125,765,906.65, 3,188,648,859.98 and 1,853,668,114.65
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Solution
The fourth proportional to 2,125,765,906.65, 3,188,648,859.98 and 1,853,668,114.65 is: 2,780,502,171.98
Step by Step Solution
- Step 1: Write the proportion equation
2,125,765,906.65 : 3,188,648,859.98 = 1,853,668,114.65 : x - Step 2: Convert to fraction form
2,125,765,906.65/3,188,648,859.98 = 1,853,668,114.65/x - Step 3: Cross multiply
2,125,765,906.65x = 3,188,648,859.98 × 1,853,668,114.65 - Step 4: Simplify right side
2,125,765,906.65x = 5,910,696,720,550,729,728 - Step 5: Solve for x
x = 5,910,696,720,550,729,728/2,125,765,906.65 - Step 6: Final answer
x = 2,780,502,171.98
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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.