Finding the Fourth Proportional to 20,430,557.28, 28,194,361.62 and 11,263,528.08
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Solution
The fourth proportional to 20,430,557.28, 28,194,361.62 and 11,263,528.08 is: 15,543,774.92
Step by Step Solution
- Step 1: Write the proportion equation
20,430,557.28 : 28,194,361.62 = 11,263,528.08 : x - Step 2: Convert to fraction form
20,430,557.28/28,194,361.62 = 11,263,528.08/x - Step 3: Cross multiply
20,430,557.28x = 28,194,361.62 × 11,263,528.08 - Step 4: Simplify right side
20,430,557.28x = 317,567,983,804,544.31 - Step 5: Solve for x
x = 317,567,983,804,544.31/20,430,557.28 - Step 6: Final answer
x = 15,543,774.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.