Finding the Fourth Proportional to 121,083,842.80, 167,190,910.68 and 97,487,424.64
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Solution
The fourth proportional to 121,083,842.80, 167,190,910.68 and 97,487,424.64 is: 134,609,299.87
Step by Step Solution
- Step 1: Write the proportion equation
121,083,842.80 : 167,190,910.68 = 97,487,424.64 : x - Step 2: Convert to fraction form
121,083,842.80/167,190,910.68 = 97,487,424.64/x - Step 3: Cross multiply
121,083,842.80x = 167,190,910.68 × 97,487,424.64 - Step 4: Simplify right side
121,083,842.80x = 16,299,011,305,409,472 - Step 5: Solve for x
x = 16,299,011,305,409,472/121,083,842.80 - Step 6: Final answer
x = 134,609,299.87
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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.