Finding the Fourth Proportional to 5,173,148.87, 7,139,502.27 and 2,850,274.91
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Solution
The fourth proportional to 5,173,148.87, 7,139,502.27 and 2,850,274.91 is: 3,933,686.17
Step by Step Solution
- Step 1: Write the proportion equation
5,173,148.87 : 7,139,502.27 = 2,850,274.91 : x - Step 2: Convert to fraction form
5,173,148.87/7,139,502.27 = 2,850,274.91/x - Step 3: Cross multiply
5,173,148.87x = 7,139,502.27 × 2,850,274.91 - Step 4: Simplify right side
5,173,148.87x = 20,349,544,190,069.05 - Step 5: Solve for x
x = 20,349,544,190,069.05/5,173,148.87 - Step 6: Final answer
x = 3,933,686.17
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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.