Finding the Fourth Proportional to 3,769,895.07, 5,202,235.21 and 2,115,888.51
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Solution
The fourth proportional to 3,769,895.07, 5,202,235.21 and 2,115,888.51 is: 2,919,802.67
Step by Step Solution
- Step 1: Write the proportion equation
3,769,895.07 : 5,202,235.21 = 2,115,888.51 : x - Step 2: Convert to fraction form
3,769,895.07/5,202,235.21 = 2,115,888.51/x - Step 3: Cross multiply
3,769,895.07x = 5,202,235.21 × 2,115,888.51 - Step 4: Simplify right side
3,769,895.07x = 11,007,349,707,156.44 - Step 5: Solve for x
x = 11,007,349,707,156.44/3,769,895.07 - Step 6: Final answer
x = 2,919,802.67
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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.