Finding the Fourth Proportional to 7,690,365.12, 10,612,772.64 and 4,252,837.44
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Solution
The fourth proportional to 7,690,365.12, 10,612,772.64 and 4,252,837.44 is: 5,868,953.70
Step by Step Solution
- Step 1: Write the proportion equation
7,690,365.12 : 10,612,772.64 = 4,252,837.44 : x - Step 2: Convert to fraction form
7,690,365.12/10,612,772.64 = 4,252,837.44/x - Step 3: Cross multiply
7,690,365.12x = 10,612,772.64 × 4,252,837.44 - Step 4: Simplify right side
7,690,365.12x = 45,134,396,825,599.65 - Step 5: Solve for x
x = 45,134,396,825,599.65/7,690,365.12 - Step 6: Final answer
x = 5,868,953.70
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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.