Finding the Fourth Proportional to 10,089,312.40, 15,133,968.60 and 8,672,136.40
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Solution
The fourth proportional to 10,089,312.40, 15,133,968.60 and 8,672,136.40 is: 13,008,204.60
Step by Step Solution
- Step 1: Write the proportion equation
10,089,312.40 : 15,133,968.60 = 8,672,136.40 : x - Step 2: Convert to fraction form
10,089,312.40/15,133,968.60 = 8,672,136.40/x - Step 3: Cross multiply
10,089,312.40x = 15,133,968.60 × 8,672,136.40 - Step 4: Simplify right side
10,089,312.40x = 131,243,839,972,517.05 - Step 5: Solve for x
x = 131,243,839,972,517.05/10,089,312.40 - Step 6: Final answer
x = 13,008,204.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.