Finding the Fourth Proportional to 330,784,277.40, 496,176,416.10 and 279,128,212.20
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Solution
The fourth proportional to 330,784,277.40, 496,176,416.10 and 279,128,212.20 is: 418,692,318.30
Step by Step Solution
- Step 1: Write the proportion equation
330,784,277.40 : 496,176,416.10 = 279,128,212.20 : x - Step 2: Convert to fraction form
330,784,277.40/496,176,416.10 = 279,128,212.20/x - Step 3: Cross multiply
330,784,277.40x = 496,176,416.10 × 279,128,212.20 - Step 4: Simplify right side
330,784,277.40x = 138,496,835,961,796,304 - Step 5: Solve for x
x = 138,496,835,961,796,304/330,784,277.40 - Step 6: Final answer
x = 418,692,318.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.