Finding the Fourth Proportional to 396,621,687.44, 546,761,069.82 and 277,173,427.70
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Solution
The fourth proportional to 396,621,687.44, 546,761,069.82 and 277,173,427.70 is: 382,096,200.62
Step by Step Solution
- Step 1: Write the proportion equation
396,621,687.44 : 546,761,069.82 = 277,173,427.70 : x - Step 2: Convert to fraction form
396,621,687.44/546,761,069.82 = 277,173,427.70/x - Step 3: Cross multiply
396,621,687.44x = 546,761,069.82 × 277,173,427.70 - Step 4: Simplify right side
396,621,687.44x = 151,547,639,854,928,416 - Step 5: Solve for x
x = 151,547,639,854,928,416/396,621,687.44 - Step 6: Final answer
x = 382,096,200.62
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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.