Finding the Fourth Proportional to 3,939,230.56, 5,436,062.40 and 2,220,317.68
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Solution
The fourth proportional to 3,939,230.56, 5,436,062.40 and 2,220,317.68 is: 3,063,995.69
Step by Step Solution
- Step 1: Write the proportion equation
3,939,230.56 : 5,436,062.40 = 2,220,317.68 : x - Step 2: Convert to fraction form
3,939,230.56/5,436,062.40 = 2,220,317.68/x - Step 3: Cross multiply
3,939,230.56x = 5,436,062.40 × 2,220,317.68 - Step 4: Simplify right side
3,939,230.56x = 12,069,785,456,303.23 - Step 5: Solve for x
x = 12,069,785,456,303.23/3,939,230.56 - Step 6: Final answer
x = 3,063,995.69
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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.