Finding the Fourth Proportional to 5,078,965.24, 7,009,174.11 and 2,787,207.94
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Solution
The fourth proportional to 5,078,965.24, 7,009,174.11 and 2,787,207.94 is: 3,846,457.85
Step by Step Solution
- Step 1: Write the proportion equation
5,078,965.24 : 7,009,174.11 = 2,787,207.94 : x - Step 2: Convert to fraction form
5,078,965.24/7,009,174.11 = 2,787,207.94/x - Step 3: Cross multiply
5,078,965.24x = 7,009,174.11 × 2,787,207.94 - Step 4: Simplify right side
5,078,965.24x = 19,536,025,732,234.43 - Step 5: Solve for x
x = 19,536,025,732,234.43/5,078,965.24 - Step 6: Final answer
x = 3,846,457.85
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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.