Finding the Fourth Proportional to 128,213,761.98, 192,338,605.53 and 41,958,948.54
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Solution
The fourth proportional to 128,213,761.98, 192,338,605.53 and 41,958,948.54 is: 62,944,301.20
Step by Step Solution
- Step 1: Write the proportion equation
128,213,761.98 : 192,338,605.53 = 41,958,948.54 : x - Step 2: Convert to fraction form
128,213,761.98/192,338,605.53 = 41,958,948.54/x - Step 3: Cross multiply
128,213,761.98x = 192,338,605.53 × 41,958,948.54 - Step 4: Simplify right side
128,213,761.98x = 8,070,325,651,688,629 - Step 5: Solve for x
x = 8,070,325,651,688,629/128,213,761.98 - Step 6: Final answer
x = 62,944,301.20
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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.