Finding the Fourth Proportional to 13,261,558.67, 18,291,085.97 and 11,710,083.12
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Solution
The fourth proportional to 13,261,558.67, 18,291,085.97 and 11,710,083.12 is: 16,151,203.82
Step by Step Solution
- Step 1: Write the proportion equation
13,261,558.67 : 18,291,085.97 = 11,710,083.12 : x - Step 2: Convert to fraction form
13,261,558.67/18,291,085.97 = 11,710,083.12/x - Step 3: Cross multiply
13,261,558.67x = 18,291,085.97 × 11,710,083.12 - Step 4: Simplify right side
13,261,558.67x = 214,190,137,063,765.81 - Step 5: Solve for x
x = 214,190,137,063,765.81/13,261,558.67 - Step 6: Final answer
x = 16,151,203.82
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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.