Finding the Fourth Proportional to 431,083,404.70, 646,625,107.05 and 431,083,404.70
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Solution
The fourth proportional to 431,083,404.70, 646,625,107.05 and 431,083,404.70 is: 646,625,107.05
Step by Step Solution
- Step 1: Write the proportion equation
431,083,404.70 : 646,625,107.05 = 431,083,404.70 : x - Step 2: Convert to fraction form
431,083,404.70/646,625,107.05 = 431,083,404.70/x - Step 3: Cross multiply
431,083,404.70x = 646,625,107.05 × 431,083,404.70 - Step 4: Simplify right side
431,083,404.70x = 278,749,352,711,615,936 - Step 5: Solve for x
x = 278,749,352,711,615,936/431,083,404.70 - Step 6: Final answer
x = 646,625,107.05
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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.