Finding the Fourth Proportional to 7,142,014.39, 9,857,548.05 and 4,694,850.70
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Solution
The fourth proportional to 7,142,014.39, 9,857,548.05 and 4,694,850.70 is: 6,479,924.83
Step by Step Solution
- Step 1: Write the proportion equation
7,142,014.39 : 9,857,548.05 = 4,694,850.70 : x - Step 2: Convert to fraction form
7,142,014.39/9,857,548.05 = 4,694,850.70/x - Step 3: Cross multiply
7,142,014.39x = 9,857,548.05 × 4,694,850.70 - Step 4: Simplify right side
7,142,014.39x = 46,279,716,362,826.14 - Step 5: Solve for x
x = 46,279,716,362,826.14/7,142,014.39 - Step 6: Final answer
x = 6,479,924.83
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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.