Finding the Fourth Proportional to 2,183,745,876.30, 3,275,618,814.45 and 959,305,812.30
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Solution
The fourth proportional to 2,183,745,876.30, 3,275,618,814.45 and 959,305,812.30 is: 1,438,958,718.45
Step by Step Solution
- Step 1: Write the proportion equation
2,183,745,876.30 : 3,275,618,814.45 = 959,305,812.30 : x - Step 2: Convert to fraction form
2,183,745,876.30/3,275,618,814.45 = 959,305,812.30/x - Step 3: Cross multiply
2,183,745,876.30x = 3,275,618,814.45 × 959,305,812.30 - Step 4: Simplify right side
2,183,745,876.30x = 3,142,320,167,581,120,000 - Step 5: Solve for x
x = 3,142,320,167,581,120,000/2,183,745,876.30 - Step 6: Final answer
x = 1,438,958,718.45
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1.5x scale
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.