Finding the Fourth Proportional to 3,643,450.74, 5,028,405.33 and 2,115,557.82
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Solution
The fourth proportional to 3,643,450.74, 5,028,405.33 and 2,115,557.82 is: 2,919,727.20
Step by Step Solution
- Step 1: Write the proportion equation
3,643,450.74 : 5,028,405.33 = 2,115,557.82 : x - Step 2: Convert to fraction form
3,643,450.74/5,028,405.33 = 2,115,557.82/x - Step 3: Cross multiply
3,643,450.74x = 5,028,405.33 × 2,115,557.82 - Step 4: Simplify right side
3,643,450.74x = 10,637,882,218,011.18 - Step 5: Solve for x
x = 10,637,882,218,011.18/3,643,450.74 - Step 6: Final answer
x = 2,919,727.20
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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.