Finding the Fourth Proportional to 472,392,556.20, 708,588,834.30 and 416,910,115.80
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Solution
The fourth proportional to 472,392,556.20, 708,588,834.30 and 416,910,115.80 is: 625,365,173.70
Step by Step Solution
- Step 1: Write the proportion equation
472,392,556.20 : 708,588,834.30 = 416,910,115.80 : x - Step 2: Convert to fraction form
472,392,556.20/708,588,834.30 = 416,910,115.80/x - Step 3: Cross multiply
472,392,556.20x = 708,588,834.30 × 416,910,115.80 - Step 4: Simplify right side
472,392,556.20x = 295,417,852,962,600,000 - Step 5: Solve for x
x = 295,417,852,962,600,000/472,392,556.20 - Step 6: Final answer
x = 625,365,173.70
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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.