Finding the Fourth Proportional to 129,374,126.10, 193,965,471.45 and 61,137,101.70
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Solution
The fourth proportional to 129,374,126.10, 193,965,471.45 and 61,137,101.70 is: 91,660,420.15
Step by Step Solution
- Step 1: Write the proportion equation
129,374,126.10 : 193,965,471.45 = 61,137,101.70 : x - Step 2: Convert to fraction form
129,374,126.10/193,965,471.45 = 61,137,101.70/x - Step 3: Cross multiply
129,374,126.10x = 193,965,471.45 × 61,137,101.70 - Step 4: Simplify right side
129,374,126.10x = 11,858,486,754,327,096 - Step 5: Solve for x
x = 11,858,486,754,327,096/129,374,126.10 - Step 6: Final answer
x = 91,660,420.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.