Finding the Fourth Proportional to 14,686,991.87, 20,268,534.71 and 8,071,814.79
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Solution
The fourth proportional to 14,686,991.87, 20,268,534.71 and 8,071,814.79 is: 11,139,371.47
Step by Step Solution
- Step 1: Write the proportion equation
14,686,991.87 : 20,268,534.71 = 8,071,814.79 : x - Step 2: Convert to fraction form
14,686,991.87/20,268,534.71 = 8,071,814.79/x - Step 3: Cross multiply
14,686,991.87x = 20,268,534.71 × 8,071,814.79 - Step 4: Simplify right side
14,686,991.87x = 163,603,858,203,447.28 - Step 5: Solve for x
x = 163,603,858,203,447.28/14,686,991.87 - Step 6: Final answer
x = 11,139,371.47
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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.