Finding the Fourth Proportional to 3,887,614.20, 5,831,421.30 and 3,478,207.80
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Solution
The fourth proportional to 3,887,614.20, 5,831,421.30 and 3,478,207.80 is: 5,217,311.70
Step by Step Solution
- Step 1: Write the proportion equation
3,887,614.20 : 5,831,421.30 = 3,478,207.80 : x - Step 2: Convert to fraction form
3,887,614.20/5,831,421.30 = 3,478,207.80/x - Step 3: Cross multiply
3,887,614.20x = 5,831,421.30 × 3,478,207.80 - Step 4: Simplify right side
3,887,614.20x = 20,282,895,050,746.14 - Step 5: Solve for x
x = 20,282,895,050,746.14/3,887,614.20 - Step 6: Final answer
x = 5,217,311.70
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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.