Finding the Fourth Proportional to 5,161,534.30, 7,122,800.18 and 2,806,680.70
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Solution
The fourth proportional to 5,161,534.30, 7,122,800.18 and 2,806,680.70 is: 3,873,155.66
Step by Step Solution
- Step 1: Write the proportion equation
5,161,534.30 : 7,122,800.18 = 2,806,680.70 : x - Step 2: Convert to fraction form
5,161,534.30/7,122,800.18 = 2,806,680.70/x - Step 3: Cross multiply
5,161,534.30x = 7,122,800.18 × 2,806,680.70 - Step 4: Simplify right side
5,161,534.30x = 19,991,425,795,162.53 - Step 5: Solve for x
x = 19,991,425,795,162.53/5,161,534.30 - Step 6: Final answer
x = 3,873,155.66
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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.