Finding the Fourth Proportional to 10,220,603.77, 15,330,905.11 and 2,647,569.25
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Solution
The fourth proportional to 10,220,603.77, 15,330,905.11 and 2,647,569.25 is: 3,971,353.73
Step by Step Solution
- Step 1: Write the proportion equation
10,220,603.77 : 15,330,905.11 = 2,647,569.25 : x - Step 2: Convert to fraction form
10,220,603.77/15,330,905.11 = 2,647,569.25/x - Step 3: Cross multiply
10,220,603.77x = 15,330,905.11 × 2,647,569.25 - Step 4: Simplify right side
10,220,603.77x = 40,589,632,943,903.87 - Step 5: Solve for x
x = 40,589,632,943,903.87/10,220,603.77 - Step 6: Final answer
x = 3,971,353.73
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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.