Finding the Fourth Proportional to 7,618,485.67, 11,427,697.73 and 2,759,654.99
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Solution
The fourth proportional to 7,618,485.67, 11,427,697.73 and 2,759,654.99 is: 4,139,471.34
Step by Step Solution
- Step 1: Write the proportion equation
7,618,485.67 : 11,427,697.73 = 2,759,654.99 : x - Step 2: Convert to fraction form
7,618,485.67/11,427,697.73 = 2,759,654.99/x - Step 3: Cross multiply
7,618,485.67x = 11,427,697.73 × 2,759,654.99 - Step 4: Simplify right side
7,618,485.67x = 31,536,503,100,274.55 - Step 5: Solve for x
x = 31,536,503,100,274.55/7,618,485.67 - Step 6: Final answer
x = 4,139,471.34
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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.