Finding the Fourth Proportional to 68,509,869.98, 94,543,519.40 and 37,147,861.97
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Solution
The fourth proportional to 68,509,869.98, 94,543,519.40 and 37,147,861.97 is: 51,263,994.66
Step by Step Solution
- Step 1: Write the proportion equation
68,509,869.98 : 94,543,519.40 = 37,147,861.97 : x - Step 2: Convert to fraction form
68,509,869.98/94,543,519.40 = 37,147,861.97/x - Step 3: Cross multiply
68,509,869.98x = 94,543,519.40 × 37,147,861.97 - Step 4: Simplify right side
68,509,869.98x = 3,512,089,609,019,141 - Step 5: Solve for x
x = 3,512,089,609,019,141/68,509,869.98 - Step 6: Final answer
x = 51,263,994.66
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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.