Finding the Fourth Proportional to 386,714,593.62, 533,679,029.71 and 217,198,704.06
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Solution
The fourth proportional to 386,714,593.62, 533,679,029.71 and 217,198,704.06 is: 299,741,451.57
Step by Step Solution
- Step 1: Write the proportion equation
386,714,593.62 : 533,679,029.71 = 217,198,704.06 : x - Step 2: Convert to fraction form
386,714,593.62/533,679,029.71 = 217,198,704.06/x - Step 3: Cross multiply
386,714,593.62x = 533,679,029.71 × 217,198,704.06 - Step 4: Simplify right side
386,714,593.62x = 115,914,393,636,467,232 - Step 5: Solve for x
x = 115,914,393,636,467,232/386,714,593.62 - Step 6: Final answer
x = 299,741,451.57
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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.