Finding the Fourth Proportional to 7,420,815.82, 10,241,339.36 and 4,114,147.68
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Solution
The fourth proportional to 7,420,815.82, 10,241,339.36 and 4,114,147.68 is: 5,677,863.95
Step by Step Solution
- Step 1: Write the proportion equation
7,420,815.82 : 10,241,339.36 = 4,114,147.68 : x - Step 2: Convert to fraction form
7,420,815.82/10,241,339.36 = 4,114,147.68/x - Step 3: Cross multiply
7,420,815.82x = 10,241,339.36 × 4,114,147.68 - Step 4: Simplify right side
7,420,815.82x = 42,134,382,578,322.06 - Step 5: Solve for x
x = 42,134,382,578,322.06/7,420,815.82 - Step 6: Final answer
x = 5,677,863.95
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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.