Finding the Fourth Proportional to 15,311,102.67, 21,129,310.07 and 8,435,584.73
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Solution
The fourth proportional to 15,311,102.67, 21,129,310.07 and 8,435,584.73 is: 11,641,100.53
Step by Step Solution
- Step 1: Write the proportion equation
15,311,102.67 : 21,129,310.07 = 8,435,584.73 : x - Step 2: Convert to fraction form
15,311,102.67/21,129,310.07 = 8,435,584.73/x - Step 3: Cross multiply
15,311,102.67x = 21,129,310.07 × 8,435,584.73 - Step 4: Simplify right side
15,311,102.67x = 178,238,085,381,927.25 - Step 5: Solve for x
x = 178,238,085,381,927.25/15,311,102.67 - Step 6: Final answer
x = 11,641,100.53
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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.