Finding the Fourth Proportional to 121,129,697.56, 167,159,661.60 and 68,918,731.96
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Solution
The fourth proportional to 121,129,697.56, 167,159,661.60 and 68,918,731.96 is: 95,108,236.41
Step by Step Solution
- Step 1: Write the proportion equation
121,129,697.56 : 167,159,661.60 = 68,918,731.96 : x - Step 2: Convert to fraction form
121,129,697.56/167,159,661.60 = 68,918,731.96/x - Step 3: Cross multiply
121,129,697.56x = 167,159,661.60 × 68,918,731.96 - Step 4: Simplify right side
121,129,697.56x = 11,520,431,912,334,704 - Step 5: Solve for x
x = 11,520,431,912,334,704/121,129,697.56 - Step 6: Final answer
x = 95,108,236.41
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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.