Finding the Fourth Proportional to 2,817,769.68, 3,886,121.84 and 2,165,973.38
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Solution
The fourth proportional to 2,817,769.68, 3,886,121.84 and 2,165,973.38 is: 2,987,198.17
Step by Step Solution
- Step 1: Write the proportion equation
2,817,769.68 : 3,886,121.84 = 2,165,973.38 : x - Step 2: Convert to fraction form
2,817,769.68/3,886,121.84 = 2,165,973.38/x - Step 3: Cross multiply
2,817,769.68x = 3,886,121.84 × 2,165,973.38 - Step 4: Simplify right side
2,817,769.68x = 8,417,236,441,189.10 - Step 5: Solve for x
x = 8,417,236,441,189.10/2,817,769.68 - Step 6: Final answer
x = 2,987,198.17
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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.