Finding the Fourth Proportional to 386,714,591.53, 533,679,026.83 and 217,198,701.97
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Solution
The fourth proportional to 386,714,591.53, 533,679,026.83 and 217,198,701.97 is: 299,741,448.69
Step by Step Solution
- Step 1: Write the proportion equation
386,714,591.53 : 533,679,026.83 = 217,198,701.97 : x - Step 2: Convert to fraction form
386,714,591.53/533,679,026.83 = 217,198,701.97/x - Step 3: Cross multiply
386,714,591.53x = 533,679,026.83 × 217,198,701.97 - Step 4: Simplify right side
386,714,591.53x = 115,914,391,897,216,208 - Step 5: Solve for x
x = 115,914,391,897,216,208/386,714,591.53 - Step 6: Final answer
x = 299,741,448.69
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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.