Finding the Fourth Proportional to 5,251,832.68, 7,877,748.12 and 1,660,120.96
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Solution
The fourth proportional to 5,251,832.68, 7,877,748.12 and 1,660,120.96 is: 2,490,181.16
Step by Step Solution
- Step 1: Write the proportion equation
5,251,832.68 : 7,877,748.12 = 1,660,120.96 : x - Step 2: Convert to fraction form
5,251,832.68/7,877,748.12 = 1,660,120.96/x - Step 3: Cross multiply
5,251,832.68x = 7,877,748.12 × 1,660,120.96 - Step 4: Simplify right side
5,251,832.68x = 13,078,014,771,612.60 - Step 5: Solve for x
x = 13,078,014,771,612.60/5,251,832.68 - Step 6: Final answer
x = 2,490,181.16
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.