Finding the Fourth Proportional to 3,747,681.11, 5,171,816.70 and 2,028,801.62
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Solution
The fourth proportional to 3,747,681.11, 5,171,816.70 and 2,028,801.62 is: 2,799,755.32
Step by Step Solution
- Step 1: Write the proportion equation
3,747,681.11 : 5,171,816.70 = 2,028,801.62 : x - Step 2: Convert to fraction form
3,747,681.11/5,171,816.70 = 2,028,801.62/x - Step 3: Cross multiply
3,747,681.11x = 5,171,816.70 × 2,028,801.62 - Step 4: Simplify right side
3,747,681.11x = 10,492,590,099,303.05 - Step 5: Solve for x
x = 10,492,590,099,303.05/3,747,681.11 - Step 6: Final answer
x = 2,799,755.32
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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.