Finding the Fourth Proportional to 449,423,793.20, 674,135,689.80 and 347,387,121.20
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Solution
The fourth proportional to 449,423,793.20, 674,135,689.80 and 347,387,121.20 is: 521,080,681.80
Step by Step Solution
- Step 1: Write the proportion equation
449,423,793.20 : 674,135,689.80 = 347,387,121.20 : x - Step 2: Convert to fraction form
449,423,793.20/674,135,689.80 = 347,387,121.20/x - Step 3: Cross multiply
449,423,793.20x = 674,135,689.80 × 347,387,121.20 - Step 4: Simplify right side
449,423,793.20x = 234,186,056,577,798,176 - Step 5: Solve for x
x = 234,186,056,577,798,176/449,423,793.20 - Step 6: Final answer
x = 521,080,681.80
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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.