Finding the Fourth Proportional to 5,130,321.57, 7,079,734.26 and 2,807,205.12
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Solution
The fourth proportional to 5,130,321.57, 7,079,734.26 and 2,807,205.12 is: 3,873,883.15
Step by Step Solution
- Step 1: Write the proportion equation
5,130,321.57 : 7,079,734.26 = 2,807,205.12 : x - Step 2: Convert to fraction form
5,130,321.57/7,079,734.26 = 2,807,205.12/x - Step 3: Cross multiply
5,130,321.57x = 7,079,734.26 × 2,807,205.12 - Step 4: Simplify right side
5,130,321.57x = 19,874,266,262,911.41 - Step 5: Solve for x
x = 19,874,266,262,911.41/5,130,321.57 - Step 6: Final answer
x = 3,873,883.15
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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.