Finding the Fourth Proportional to 13,859,685.36, 19,125,817.20 and 7,664,329.92
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Solution
The fourth proportional to 13,859,685.36, 19,125,817.20 and 7,664,329.92 is: 10,576,471.92
Step by Step Solution
- Step 1: Write the proportion equation
13,859,685.36 : 19,125,817.20 = 7,664,329.92 : x - Step 2: Convert to fraction form
13,859,685.36/19,125,817.20 = 7,664,329.92/x - Step 3: Cross multiply
13,859,685.36x = 19,125,817.20 × 7,664,329.92 - Step 4: Simplify right side
13,859,685.36x = 146,586,573,010,410.62 - Step 5: Solve for x
x = 146,586,573,010,410.62/13,859,685.36 - Step 6: Final answer
x = 10,576,471.92
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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.