Finding the Fourth Proportional to 14,809,968.96, 20,437,486.56 and 8,371,440.96
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Solution
The fourth proportional to 14,809,968.96, 20,437,486.56 and 8,371,440.96 is: 11,552,435.56
Step by Step Solution
- Step 1: Write the proportion equation
14,809,968.96 : 20,437,486.56 = 8,371,440.96 : x - Step 2: Convert to fraction form
14,809,968.96/20,437,486.56 = 8,371,440.96/x - Step 3: Cross multiply
14,809,968.96x = 20,437,486.56 × 8,371,440.96 - Step 4: Simplify right side
14,809,968.96x = 171,091,212,107,833.50 - Step 5: Solve for x
x = 171,091,212,107,833.50/14,809,968.96 - Step 6: Final answer
x = 11,552,435.56
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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.