Finding the Fourth Proportional to 545,934,946.20, 818,902,419.30 and 449,000,107.80
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Solution
The fourth proportional to 545,934,946.20, 818,902,419.30 and 449,000,107.80 is: 673,500,161.70
Step by Step Solution
- Step 1: Write the proportion equation
545,934,946.20 : 818,902,419.30 = 449,000,107.80 : x - Step 2: Convert to fraction form
545,934,946.20/818,902,419.30 = 449,000,107.80/x - Step 3: Cross multiply
545,934,946.20x = 818,902,419.30 × 449,000,107.80 - Step 4: Simplify right side
545,934,946.20x = 367,687,274,543,380,800 - Step 5: Solve for x
x = 367,687,274,543,380,800/545,934,946.20 - Step 6: Final answer
x = 673,500,161.70
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1.5x scale
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.