Finding the Fourth Proportional to 5,285,476.58, 7,294,980.21 and 3,446,742.62
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Solution
The fourth proportional to 5,285,476.58, 7,294,980.21 and 3,446,742.62 is: 4,757,171.62
Step by Step Solution
- Step 1: Write the proportion equation
5,285,476.58 : 7,294,980.21 = 3,446,742.62 : x - Step 2: Convert to fraction form
5,285,476.58/7,294,980.21 = 3,446,742.62/x - Step 3: Cross multiply
5,285,476.58x = 7,294,980.21 × 3,446,742.62 - Step 4: Simplify right side
5,285,476.58x = 25,143,919,165,388.65 - Step 5: Solve for x
x = 25,143,919,165,388.65/5,285,476.58 - Step 6: Final answer
x = 4,757,171.62
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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.