Finding the Fourth Proportional to 665,396,586.20, 998,000,400.90 and 228,717,421.40
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Solution
The fourth proportional to 665,396,586.20, 998,000,400.90 and 228,717,421.40 is: 343,043,656.95
Step by Step Solution
- Step 1: Write the proportion equation
665,396,586.20 : 998,000,400.90 = 228,717,421.40 : x - Step 2: Convert to fraction form
665,396,586.20/998,000,400.90 = 228,717,421.40/x - Step 3: Cross multiply
665,396,586.20x = 998,000,400.90 × 228,717,421.40 - Step 4: Simplify right side
665,396,586.20x = 228,260,078,250,014,240 - Step 5: Solve for x
x = 228,260,078,250,014,240/665,396,586.20 - Step 6: Final answer
x = 343,043,656.95
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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.