Finding the Fourth Proportional to 5,743,734.18, 7,928,382.70 and 5,130,821.96
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Solution
The fourth proportional to 5,743,734.18, 7,928,382.70 and 5,130,821.96 is: 7,082,347.27
Step by Step Solution
- Step 1: Write the proportion equation
5,743,734.18 : 7,928,382.70 = 5,130,821.96 : x - Step 2: Convert to fraction form
5,743,734.18/7,928,382.70 = 5,130,821.96/x - Step 3: Cross multiply
5,743,734.18x = 7,928,382.70 × 5,130,821.96 - Step 4: Simplify right side
5,743,734.18x = 40,679,120,064,444.09 - Step 5: Solve for x
x = 40,679,120,064,444.09/5,743,734.18 - Step 6: Final answer
x = 7,082,347.27
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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.