Finding the Fourth Proportional to 5,173,412.10, 7,138,967.13 and 3,107,199.93
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Solution
The fourth proportional to 5,173,412.10, 7,138,967.13 and 3,107,199.93 is: 4,287,730.75
Step by Step Solution
- Step 1: Write the proportion equation
5,173,412.10 : 7,138,967.13 = 3,107,199.93 : x - Step 2: Convert to fraction form
5,173,412.10/7,138,967.13 = 3,107,199.93/x - Step 3: Cross multiply
5,173,412.10x = 7,138,967.13 × 3,107,199.93 - Step 4: Simplify right side
5,173,412.10x = 22,182,198,166,608.30 - Step 5: Solve for x
x = 22,182,198,166,608.30/5,173,412.10 - Step 6: Final answer
x = 4,287,730.75
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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.