Finding the Fourth Proportional to 2,915,351.12, 4,023,157.56 and 1,608,615.20
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Solution
The fourth proportional to 2,915,351.12, 4,023,157.56 and 1,608,615.20 is: 2,219,874.09
Step by Step Solution
- Step 1: Write the proportion equation
2,915,351.12 : 4,023,157.56 = 1,608,615.20 : x - Step 2: Convert to fraction form
2,915,351.12/4,023,157.56 = 1,608,615.20/x - Step 3: Cross multiply
2,915,351.12x = 4,023,157.56 × 1,608,615.20 - Step 4: Simplify right side
2,915,351.12x = 6,471,712,403,010.91 - Step 5: Solve for x
x = 6,471,712,403,010.91/2,915,351.12 - Step 6: Final answer
x = 2,219,874.09
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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.