Finding the Fourth Proportional to 771,391,697.13, 1,157,394,153.17 and 246,841,620.26
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Solution
The fourth proportional to 771,391,697.13, 1,157,394,153.17 and 246,841,620.26 is: 370,360,543.30
Step by Step Solution
- Step 1: Write the proportion equation
771,391,697.13 : 1,157,394,153.17 = 246,841,620.26 : x - Step 2: Convert to fraction form
771,391,697.13/1,157,394,153.17 = 246,841,620.26/x - Step 3: Cross multiply
771,391,697.13x = 1,157,394,153.17 × 246,841,620.26 - Step 4: Simplify right side
771,391,697.13x = 285,693,048,042,763,520 - Step 5: Solve for x
x = 285,693,048,042,763,520/771,391,697.13 - Step 6: Final answer
x = 370,360,543.30
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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.