Finding the Fourth Proportional to 386,714,592.68, 533,679,028.41 and 217,198,703.12
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Solution
The fourth proportional to 386,714,592.68, 533,679,028.41 and 217,198,703.12 is: 299,741,450.28
Step by Step Solution
- Step 1: Write the proportion equation
386,714,592.68 : 533,679,028.41 = 217,198,703.12 : x - Step 2: Convert to fraction form
386,714,592.68/533,679,028.41 = 217,198,703.12/x - Step 3: Cross multiply
386,714,592.68x = 533,679,028.41 × 217,198,703.12 - Step 4: Simplify right side
386,714,592.68x = 115,914,392,855,142,336 - Step 5: Solve for x
x = 115,914,392,855,142,336/386,714,592.68 - Step 6: Final answer
x = 299,741,450.28
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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.