Finding the Fourth Proportional to 431,036,625.13, 646,560,536.41 and 143,822,289.13
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Solution
The fourth proportional to 431,036,625.13, 646,560,536.41 and 143,822,289.13 is: 215,735,301.80
Step by Step Solution
- Step 1: Write the proportion equation
431,036,625.13 : 646,560,536.41 = 143,822,289.13 : x - Step 2: Convert to fraction form
431,036,625.13/646,560,536.41 = 143,822,289.13/x - Step 3: Cross multiply
431,036,625.13x = 646,560,536.41 × 143,822,289.13 - Step 4: Simplify right side
431,036,625.13x = 92,989,816,407,606,912 - Step 5: Solve for x
x = 92,989,816,407,606,912/431,036,625.13 - Step 6: Final answer
x = 215,735,301.80
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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.