Finding the Fourth Proportional to 3,986,737.20, 5,977,448.52 and 1,936,851.18
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Solution
The fourth proportional to 3,986,737.20, 5,977,448.52 and 1,936,851.18 is: 2,903,985.80
Step by Step Solution
- Step 1: Write the proportion equation
3,986,737.20 : 5,977,448.52 = 1,936,851.18 : x - Step 2: Convert to fraction form
3,986,737.20/5,977,448.52 = 1,936,851.18/x - Step 3: Cross multiply
3,986,737.20x = 5,977,448.52 × 1,936,851.18 - Step 4: Simplify right side
3,986,737.20x = 11,577,428,219,351.25 - Step 5: Solve for x
x = 11,577,428,219,351.25/3,986,737.20 - Step 6: Final answer
x = 2,903,985.80
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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.