Finding the Fourth Proportional to 3,918,019.07, 5,406,569.70 and 2,198,807.44
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Solution
The fourth proportional to 3,918,019.07, 5,406,569.70 and 2,198,807.44 is: 3,034,187.80
Step by Step Solution
- Step 1: Write the proportion equation
3,918,019.07 : 5,406,569.70 = 2,198,807.44 : x - Step 2: Convert to fraction form
3,918,019.07/5,406,569.70 = 2,198,807.44/x - Step 3: Cross multiply
3,918,019.07x = 5,406,569.70 × 2,198,807.44 - Step 4: Simplify right side
3,918,019.07x = 11,888,005,665,660.76 - Step 5: Solve for x
x = 11,888,005,665,660.76/3,918,019.07 - Step 6: Final answer
x = 3,034,187.80
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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.