Finding the Fourth Proportional to 3,456,543.57, 4,768,699.71 and 2,165,135.73
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Solution
The fourth proportional to 3,456,543.57, 4,768,699.71 and 2,165,135.73 is: 2,987,053.95
Step by Step Solution
- Step 1: Write the proportion equation
3,456,543.57 : 4,768,699.71 = 2,165,135.73 : x - Step 2: Convert to fraction form
3,456,543.57/4,768,699.71 = 2,165,135.73/x - Step 3: Cross multiply
3,456,543.57x = 4,768,699.71 × 2,165,135.73 - Step 4: Simplify right side
3,456,543.57x = 10,324,882,127,761.64 - Step 5: Solve for x
x = 10,324,882,127,761.64/3,456,543.57 - Step 6: Final answer
x = 2,987,053.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.