Finding the Fourth Proportional to 7,225,368.95, 9,971,145.97 and 3,961,989.05
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Solution
The fourth proportional to 7,225,368.95, 9,971,145.97 and 3,961,989.05 is: 5,467,619.90
Step by Step Solution
- Step 1: Write the proportion equation
7,225,368.95 : 9,971,145.97 = 3,961,989.05 : x - Step 2: Convert to fraction form
7,225,368.95/9,971,145.97 = 3,961,989.05/x - Step 3: Cross multiply
7,225,368.95x = 9,971,145.97 × 3,961,989.05 - Step 4: Simplify right side
7,225,368.95x = 39,505,571,089,330.92 - Step 5: Solve for x
x = 39,505,571,089,330.92/7,225,368.95 - Step 6: Final answer
x = 5,467,619.90
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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.