Finding the Fourth Proportional to 5,314,433.28, 7,972,915.01 and 1,720,199.99
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Solution
The fourth proportional to 5,314,433.28, 7,972,915.01 and 1,720,199.99 is: 2,580,709.47
Step by Step Solution
- Step 1: Write the proportion equation
5,314,433.28 : 7,972,915.01 = 1,720,199.99 : x - Step 2: Convert to fraction form
5,314,433.28/7,972,915.01 = 1,720,199.99/x - Step 3: Cross multiply
5,314,433.28x = 7,972,915.01 × 1,720,199.99 - Step 4: Simplify right side
5,314,433.28x = 13,715,008,272,007.28 - Step 5: Solve for x
x = 13,715,008,272,007.28/5,314,433.28 - Step 6: Final answer
x = 2,580,709.47
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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.