Finding the Fourth Proportional to 5,122,343.60, 7,678,266.60 and 2,991,330.80
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Solution
The fourth proportional to 5,122,343.60, 7,678,266.60 and 2,991,330.80 is: 4,483,931.02
Step by Step Solution
- Step 1: Write the proportion equation
5,122,343.60 : 7,678,266.60 = 2,991,330.80 : x - Step 2: Convert to fraction form
5,122,343.60/7,678,266.60 = 2,991,330.80/x - Step 3: Cross multiply
5,122,343.60x = 7,678,266.60 × 2,991,330.80 - Step 4: Simplify right side
5,122,343.60x = 22,968,235,371,191.28 - Step 5: Solve for x
x = 22,968,235,371,191.28/5,122,343.60 - Step 6: Final answer
x = 4,483,931.02
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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.