Finding the Fourth Proportional to 7,121,048.58, 10,681,573.01 and 1,729,662.66
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Solution
The fourth proportional to 7,121,048.58, 10,681,573.01 and 1,729,662.66 is: 2,594,494.02
Step by Step Solution
- Step 1: Write the proportion equation
7,121,048.58 : 10,681,573.01 = 1,729,662.66 : x - Step 2: Convert to fraction form
7,121,048.58/10,681,573.01 = 1,729,662.66/x - Step 3: Cross multiply
7,121,048.58x = 10,681,573.01 × 1,729,662.66 - Step 4: Simplify right side
7,121,048.58x = 18,475,517,976,812.49 - Step 5: Solve for x
x = 18,475,517,976,812.49/7,121,048.58 - Step 6: Final answer
x = 2,594,494.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.