Finding the Fourth Proportional to 603,757,846.20, 905,158,472.40 and 331,128,613.20
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Solution
The fourth proportional to 603,757,846.20, 905,158,472.40 and 331,128,613.20 is: 496,430,599.75
Step by Step Solution
- Step 1: Write the proportion equation
603,757,846.20 : 905,158,472.40 = 331,128,613.20 : x - Step 2: Convert to fraction form
603,757,846.20/905,158,472.40 = 331,128,613.20/x - Step 3: Cross multiply
603,757,846.20x = 905,158,472.40 × 331,128,613.20 - Step 4: Simplify right side
603,757,846.20x = 299,723,869,692,042,432 - Step 5: Solve for x
x = 299,723,869,692,042,432/603,757,846.20 - Step 6: Final answer
x = 496,430,599.75
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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.