Finding the Fourth Proportional to 465,254,910.48, 642,147,051.06 and 277,193,372.70
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Solution
The fourth proportional to 465,254,910.48, 642,147,051.06 and 277,193,372.70 is: 382,583,617.80
Step by Step Solution
- Step 1: Write the proportion equation
465,254,910.48 : 642,147,051.06 = 277,193,372.70 : x - Step 2: Convert to fraction form
465,254,910.48/642,147,051.06 = 277,193,372.70/x - Step 3: Cross multiply
465,254,910.48x = 642,147,051.06 × 277,193,372.70 - Step 4: Simplify right side
465,254,910.48x = 177,998,906,852,680,480 - Step 5: Solve for x
x = 177,998,906,852,680,480/465,254,910.48 - Step 6: Final answer
x = 382,583,617.80
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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.