Finding the Fourth Proportional to 357,467,489.80, 536,201,234.70 and 253,163,336.20
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Solution
The fourth proportional to 357,467,489.80, 536,201,234.70 and 253,163,336.20 is: 379,745,004.30
Step by Step Solution
- Step 1: Write the proportion equation
357,467,489.80 : 536,201,234.70 = 253,163,336.20 : x - Step 2: Convert to fraction form
357,467,489.80/536,201,234.70 = 253,163,336.20/x - Step 3: Cross multiply
357,467,489.80x = 536,201,234.70 × 253,163,336.20 - Step 4: Simplify right side
357,467,489.80x = 135,746,493,451,211,200 - Step 5: Solve for x
x = 135,746,493,451,211,200/357,467,489.80 - Step 6: Final answer
x = 379,745,004.30
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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.