Finding the Fourth Proportional to 5,199,796.78, 7,802,414.99 and 2,128,067.80
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Solution
The fourth proportional to 5,199,796.78, 7,802,414.99 and 2,128,067.80 is: 3,193,214.81
Step by Step Solution
- Step 1: Write the proportion equation
5,199,796.78 : 7,802,414.99 = 2,128,067.80 : x - Step 2: Convert to fraction form
5,199,796.78/7,802,414.99 = 2,128,067.80/x - Step 3: Cross multiply
5,199,796.78x = 7,802,414.99 × 2,128,067.80 - Step 4: Simplify right side
5,199,796.78x = 16,604,068,052,803.91 - Step 5: Solve for x
x = 16,604,068,052,803.91/5,199,796.78 - Step 6: Final answer
x = 3,193,214.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.